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Urwerk has teamed with Collective Horology and the Intrepid Sea, Air & Space Museum to create a special edition Urwerk UR-100 that pays tribute to Space Shuttle Enterprise on the 40th anniversary of the first Space Shuttle program.

The new Urwerk 100V P.02 allows the viewer to track typical Space Shuttle launch and landing sequences.

The pioneering independent watchmaker has re-designed its existing UR-100 to incorporate color-coded indicators designed to give the viewer the ability to track the Space Shuttle program’s typical launch and landing sequences. These are visible through apertures that also show the approximate location of the Shuttle at each phase of launch and landing.

Thus, on the new titanium and steel-cased Urwerk 100V P.02, green represents the shuttle on Earth. Blue indicates the shuttle traveling through the Earth’s sky or lower atmosphere. Red represents the upper atmosphere and black indicates time in low earth orbit.

Where the standard Urwerk UR-100V tracks the kilometers traveled on the equator in twenty minutes, and the kilometers the earth covered around the sun in the same period, the new edition takes a different approach. It re-configures the dial’s two lateral apertures to track the process and timing of the Space Shuttle’s launch and landing.

Space Base

The partnership is Urwerk’s first collaboration with an organization or individual other than a watchmaker (and one whiskey maker). The joint effort was spurred by life-long admiration for the Space Shuttle and space travel by Urwerk co-founders Martin Frei and Felix Baumgartner, and by Asher Rapkin and Gabe Reilly, founders of Collective Horology, a California-based collector group.

“We loved URWERK’s use of orbiting satellite hours and minute hands for the UR-100 SpaceTime launched in 2019, but we saw an opportunity to tell a different story,” says Reilly. He adds that he imagined how Urwerk might create a watch that was a tribute to the Space Shuttle prototype Enterprise.

Collective Horology and Florida-based Goldsmith & Complications, the watch’s official authorized dealer, will donate $50,000 dollars from the proceeds of this project to the Intrepid Museum in New York City.

The new Urwerk UR-100V P.02 is available to existing and new Collective Horology members. This will be a limited edition of twenty pieces. Price: $62,500.

Specifications: Urwerk UR-100V P.02

Movement: Self-winding UR 12.02 movement with the winding rotor governed by a Windfänger airscrew. Materials include satellite hours on beryllium-bronze Geneva crosses; aluminum carousel; carousel and triple baseplates in ARCAP alloy. Forty-eight hour power reserve. Finishing: Circular graining and sanding, shot peening; chamfered screw heads; hours and minutes painted in SuperLumiNova.

Displays: Satellite hours and minutes; space shuttle sequence of events indications.

Case: 41mm by 49.7mm by 14mm titanium and stainless steel with a gun metal PVD finish. Sapphire crystal and thirty meters of water resistance.

Price: $62,500.

MB&F expands its award-winning Legacy Machine FlyingT collection with a new model boasting a vivid green malachite dial plate. You might recall that the independent watchmaker launched the LM FlyingT in 2019 in three white gold diamond-set editions.

The new MB&F LM FlyingT Malachite.

The 38.5mm watch was MB&F’s first venture into feminine-focused design, and it was quite a success. Customers clamored for it, and much of the industry awarded it the prize for Best Ladies’ Complication at the 2019 Grand Prix d’Horlogerie de Genève.

Just last year MB&F added a limited edition guilloché-dialed series cased in red gold and platinum. More recently, the watchmaker launched an eye-catching Lapis Lazuli LM FlyingT model, accompanied by an explanation that the brand expected to announce at least one new gemstone-set edition annually.

As on the earlier LM Flying T editions, the new watch’s 18-karat white gold case, set with diamonds, frames the malachite dial plate and, at 7 o’clock, the angled (at 50 degrees) time display, also set with malachite. A dramatic 60-second flying tourbillon emerges from the center of the malachite plate anchored at the top by a cantilevered double-arch upper bridge. Turn the watch over to enjoy the three-dimensional red gold sun rotor with sculpted rays.

MB&F explains that malachite varies in color, veering from light green to dark green. Historically malachite has been associated with omens of good health, including protection from lightning. No word on whether MB&F is offering similar such protections, but we can safely assure anyone wearing the new MB&F LM FlyingT Malachite full protection from a dull wrist. Price: $145,000.

The full collection of MB&F Legacy Machine FlyingT models.

MB&F has expanded and updated its popular Legacy Machine 101 collection, which features one of the independent watchmaker’s most compact (40mm) creations and the first to be powered by a movement entirely designed and built by the watchmaker’s own engineering team. 

MB&F cases one of its three new LM101 debuts in steel.

A dramatic suspended balance wheel still dominates the LM101, but this latest design enhances the dial display with a double hairspring. You might recognize the addition: It’s the same hairspring found in the LM101 MB&F x H. Moser collaboration, which sold out quickly after its debut last year.

Reading the time and the power reserve on the new LM101 is also made easier thanks to larger subdials and a slimmer bezel than we’ve seen on previous versions of the watch. Underneath the new hairspring and larger subdials MB&F is offering a new dial for this latest LM101.

In addition to the three new lacquered dial colors, note the new finely engraved sunray pattern, which MB&F places directly on top of the movement plate.

Aesthetics and finishing specifications for LM101 are by Kari Voutilainen.

And finally, one of the three LM101 debuts is cased in steel, which MB&F utilizes fairly infrequently as a case material. The debut includes three editions: white gold with a striking purple dial, red gold with a handsome dark blue dial ($68,000) and in a stainless steel case with a light blue dial ($56,000).

 

Specifications: MB&F Legacy Machine 101

Movement: Three-dimensional horological movement developed in-house by MB&F. Aesthetics and finishing specifications by Kari Voutilainen. Manual winding with single mainspring barrel and power reserve of 45 hours. The balance is 14mm balance wheel with four traditional regulating screws floating above the movement. The balance spring, via H. Moser, features a traditional Breguet curve terminating in mobile stud holder and a Straumann double hairspring. Balance frequency is 18,000bph (2.5Hz). Finishing includes gold chatons with polished countersinks, fine hand finishing with superlative 19th century-style; internal bevel angles, polished bevels, Geneva waves; hand-made engravings, NAC black bridges for the 2021 editions.

Dial: Lacquered royal blue, light blue or purple. Hours, minutes and power reserve indicator and large 14mm suspended balance wheel.

Case: 40mm x16mm in white gold, red gold and stainless steel. High domed crystal sapphire on top and box sapphire crystal on back, both with anti-reflective coating on both sides.

Strap: Hand-stitched alligator or veal strap with buckle to match the case.

 

 

Greubel Forsey debuts its first metal bracelet today as it adds contemporary updates to its titanium GMT Sport. The all-new, fully integrated titanium bracelet echoes the new look of the unusual elliptical bezel, complete with the high level of hand finishing you’d expect from Greubel Forsey.

The new Greubel Forsey GMT Sport, with the brand’s first-ever metal bracelet, here made in titanium.

You might recall that when this high-end watchmaker first showed the world the GMT Sport in 2019, the watch’s distinctive ovoid bezel attracted just as much attention as the watch’s new movement featuring such Greubel Forsey specialties as a Tourbillon 24 Seconds and eye-catching three-dimensional GMT globe.  

Likewise, the new bracelet here might garner outsized attention given its premiere status for this brand. Greubel Forsey has devised a three-link bracelet finished with many of the same styles we see on the 45mm-by-15.7mm case and bezel, notably straight graining, frosting and top-tier hand-polished beveling.

Greubel Forsey notes that it opted to frost-finish the lugs to better emphasize how the case and bracelet link directly along an uninterrupted row. The somewhat darker frosting continues along both edges of the bracelet as well, underscoring the visual unity of the two components.

Functionally, the bracelet features a fine adjustment system that allows the wearer to quickly loosen or tighten the bracelet’s fit. The watch will also arrive with a blue rubber strap with text in relief and a titanium folding clasp with engraved logo.

The watch will also arrive with a blue rubber strap with text in relief and a titanium folding clasp with engraved logo.

Clean bezel

While adding a bracelet to the GMT Sport, Greubel Forsey has also removed something: The GMT Sport’s wide, undulating bezel is now free of the raised engraved text espousing the brand’s values. Instead, the elliptical bezel, which curves gently at 12 o’clock and 6 o’clock, is cleaner, sporting expert hand-finished horizontal straight graining on top and a hand-polished frame.

Thus, instead of reading words like ‘perfection’ and ‘harmonie’, the wearer can focus on the GMT Sport’s intricate, multi-dimensional dial components and displays amid the bright new blue and titanium color scheme.

Indeed, the new color scheme of this GMT Sport highlights a matte blue finish on the mainplate, bridges, globe, second time zone dial and 24-second indicator ring of the Tourbillon 24 Seconds. The color nicely contrasts with the polished components of the steel and titanium movement components.

In addition, to draw attention to new blue color scheme, Greubel Forsey has decided to skeletonize the highly visible central suspended arched bridge and the tourbillon bridge.

The blue color splashes across the multi-level dial plates, replacing the dark grey hue of the previous GMT Sport. Between the blue plates wearers can check the time via a central hours and minutes display while eyeing a second time zone at 10 o’clock, a power reserve indicator at 3 o’clock and the GMT rotating terrestrial globe at 8 o’clock.

On the GMT Sport caseback is a sapphire disc displaying city names surrounded by two rings.

The GMT globe, first seen in 2011 and used within the GMT Black in 2015, displays the second time zone (as seen on the auxiliary dial just above at 10 o’clock). When the wearer combines this with the globe’s universal time display, he or she can read the current time anywhere in the world. And of course a wearer can enjoy the whirling Tourbillon 24 Secondes, positioned between 12 o’clock and 2 o’clock, which contributes to the watch’s high level of precision.

Greubel Forsey will make the new GMT Sport with the new titanium bracelet in a limited edition of thirty-three units. The price has not yet been announced, though the previous GMT Sport was priced at $500,000.

 

Specifications: Greubel Forsey GMT Sport

Features: 
In titanium, blue movement, limited edition hand-wound movement with three patents, GMT, 2nd time zone indication, rotating globe with universal time and day-and-night, universal time on 24 time zones, summer and wintertime indication, cities observing summer time, 24-second tourbillon, hours and minutes, small seconds, power-reserve indictor.

Movement: Greubel Forsey manual-wind caliber with 63 domed jewels in gold chatons, Tourbillon inclined at a 25° angle 1 rotation in 24 seconds, 72-hour power reserve, 21,600 bph,

Case: 45mm (with bezel) by 17.8mm (with crystals) titanium with curved synthetic sapphire crystal, three-dimensional, variable geometry-shaped bezel, hand-polished with hand-finished straight graining, 100-meter water resistance. O back is a sapphire disc displaying city names surrounded by 2 rings

Bracelet: New three-row metal bracelet in titanium, folding clasp with integrated fine adjustment, engraved GF logo. Also: rubber with text in relief, titanium folding clasp, engraved GF logo. 

 

Ten years after debuting its first Legacy Machine, ground-breaking independent watchmaker MB&F debuts LMX, a new dual-dial Legacy Machine that echoes the premiere Legacy Machine, but with new dial angles, a dual-display power reserve indicator and updated precision.

The new MB&F LMX, in rose gold.

Like the first MB&F Legacy Machine, the new LMX also features two white lacquer dials displaying hours and minutes in two different time zones. But where those dials were flat on that first model, the two white dials on the new LMX are tilted at an angle, much like dials we’ve seen on the MB&F LM Flying T and LM Thunderdome. This meant MB&F needed to add conical gearing to the movement in order to transfer the energy from the horizontal movement to the tilted dials.

Where the first Legacy Machine featured a somewhat traditional dial plate, the new LMX shows off its battle-axe-shaped escapement bridge and components of the gear train. Specifically,  MB&F exposes three large wheels, namely the two gears that rotate when setting each dial, plus the gear at 6 o’clock, which is the common seconds wheel.

New power indicator

Also new is a much more complex power reserve indicator. While the first Legacy Machine itself broke new ground with a three-dimensional power reserve display, the LMX offers a nod to that debut with a three-dimensional, hemispherical display that is also customizable.

The wearer can select between two modes of counting down the power reserve. Here we see the days of the week. The opposite side is numbered 1-7.

The wearer can select between two modes of counting down the power reserve. MB&F places two markers on opposite sides of the hemisphere. One features a scale numbered from one day to seven days, and the other scale shows the days of the week.

The new display, likely the first of its kind on a wristwatch, allows wearers to choose their preferred mode of power-reserve indication.

Through the sapphire case back the viewer can see three barrels placed evenly around the center.

Finally, MB&F has built a new balance wheel for the LMX. The exposed balance, hanging from arched titanium bridges, is for many the primary characteristic of the first Legacy Machine and is repeated throughout the decade-long Legacy Machine lineage. MB&F has built a new balance wheel measuring 13.4mm in diameter with inertia blocks rather than more traditional screwed balances. MB&F explains that this choice “offers greater accuracy to the watchmaker in regulating the heart of LMX.”

 

MB&F is offering the new LMX in two limited launch editions:

– Eighteen pieces in red gold with black NAC treatment on plates and bridges ($128,000);

– Thirty-three pieces in titanium with green CVD treatment on plates and bridges ($112,000).

Specifications: MB&F LMX

Movement: MB&F three-dimensional manual winding with three mainspring barrels. Power reserve of 7 days (168 hours), new 13.4mm balance wheel with inertia blocks floating above the movement. Balance spring is traditional Breguet curve terminating in mobile stud holder; balance frequency is 18,000bph (2.5Hz), gold chatons with diamond countersinks, superlative hand finishing throughout respecting 19th century style; internal bevel angles highlighting hand craft; polished bevels; Geneva waves; hand-made engravings; polished arms of the straight bridges exposed on the dial plate, manually finished to a curved “bercé” profile on their upper surfaces.

MB&F has opened the watch’s dial to expose more of the movement’s most active gears and components

Dial: Completely independent dual time zones displayed on two dials. Unique hemispherical power reserve with choice of weekday or 7-day indication; rotates to adjust the preferred power reserve indication. Left crown at 10 o’clock for setting time of left dial; right crown at 2 o’clock for setting time of right dial and winding.

Case: 44 mm wide x 21.4 mm in two launch editions: 18-karat 5N+ red gold case limited to 18 pieces or grade-5 titanium case limited to 33 pieces. High domed sapphire crystal on top and sapphire crystal on back with anti-reflective coating on both sides.

Strap: Black hand-stitched alligator strap with 5N+ gold folding buckle for red gold version, and grey hand-stitched alligator strap with titanium folding buckle for titanium edition.

 

Greubel Forsey now offers its GMT Quadruple Tourbillon with a titanium case and adds eye-catching new blue hues to the dial of the highly complicated 46.5mm watch.

The newest Greubel Forsey GMT Quadruple Tourbillon is housed in a titanium case.

With its new case, the watch is one-third lighter than the original white gold model, which Greubel Forsey debuted in 2019. To complement that lightness, the watchmaker attaches a new rubber strap, which quite effectively enhances the modern profile of the watch, adding a touch of sportiness. (An alligator strap is also available.)

As noted, the new dial treatment maintains that message, with an electric-blue-hued hour ring and power reserve indicator.  Previously all black, the circular-grained hour ring retains its polished bevels, echoing the mainplate, which Greubel Forsey has made more contemporary with its own gray frosted and spotted finishing. The plate boasts a full complement of polished bevels and countersinks.

Greubel Forsey has also re-faced one of the watch’s many technical highlights: its titanium GMT globe. This miniature planet Earth, which Greubel Forsey debuted in 2011, now displays the continents amid newly bright blue seas, a livelier depiction than the globe rotating within the white gold GMT Quadruple Tourbillon two years ago.  The new ocean color nicely matches the new blue finish of the power reserve, hour circle and strap.

Many displays

These cosmetic changes haven’t altered the globe’s dramatic time display. The Earth is surrounded by a fixed 24 hours ring around the Equator. This ring displays local time for all the longitudes and takes into account the day/night with an indicator. A peek through the side of the case, through a sapphire window adjacent to the globe, reveals a clear view of the Equator and the southern hemisphere.

Beyond the new livery, the latest Greubel Forsey GMT Quadruple Tourbillon remains a feast for the eyes. The multi-level, three-dimensional dial offers the main hours and minutes subdial at the highest point (between 1 o’clock and 2 o’clock), with the coaxial small seconds and second time zone at 4 o’clock forming the second highest point.

You may recall that each Double Tourbillon 30° features a first cage rotating in one minute and angled at 30°, fitted inside a second upright cage that rotates once in four minutes. Greubel Forsey explains that the combination of the inner cage inclination and the different rotational speeds of the two cages cancel any timing variations. A spherical differential transmits the average timing rate of all four of the tourbillon cages, improving their chronometric performance.

The back of the watch also delivers both awe and information. Universal time can be spied, with a fixed 24-hour scale showing day and night zones and a disk with abbreviations of twenty-four cities. The same disk also distinguishes between the time zones that utilize Daylight Saving Time and those that don’t.

Greubel Forsey plans to make eleven examples of this new titanium-cased GMT Quadruple Tourbillon, each priced at 760,000 Swiss francs. The watch will be made, eventually, as an edition of sixty-six examples.

 

Specifications: Greubel Forsey GMT Quadruple Tourbillon, in titanium

Movement: Manual-wind, olive-domed jewels in gold chatons, three series-coupled fast-rotating barrels, 21,600 vph, inner tourbillons inclined at a 30° angle w/1 rotation per minute. 
Outer tourbillons: 1 rotation in four minutes.

Functions and displays: GMT, 2nd time zone, rotating globe with universal time and day-and-night, universal time on 24 
time zones, cities observing summer time, lateral window showing the equator and southern hemisphere, GMT pusher, quadruple tourbillon, hours and minutes, small seconds, power-reserve (72 hours).

Case: 46.50mm by 17.45mm titanium with asymmetrical convex synthetic sapphire crystal.

Dial: Multi-level in gold, anthracite color, gold hour-ring, colored blue, and blued power reserve with gold hour markers.

Strap: Rubber or hand-sewn alligator, titanium folding clasp, engraved with the GF logo.

Price: CHF 760,000.

 

De Bethune last week launched the DB Kind of Two Tourbillon, a two-sided watch with a contemporary tourbillon dial that the wearer can flip to show a classical time-only dial.

Like other two-sided watches, the new De Bethune watch means the wearer can choose to expose one of two different dials on his or her wrist.

The contemporary side of the De Bethune DB Kind of Two Tourbillon.

One side of the 42.8mm titanium watch displays the contemporary design with multi-level elements and delta-shaped bridge for which De Bethune is identified. This dial features the brand’s distinctive central hours and minutes hands and its high-speed tourbillon and a thirty-second indication. Here however, De Bethune altered its deltoid-shaped bridge just a bit to make it perfectly symmetrical, a design meant to create a stark sense of harmony.

The classic side of the De Bethune DB Kind of Two Tourbillon.

Classic side

On the other side of the DB Kind of Two De Bethune offers a more classical three-hand, time-only hand-guilloché dial, complete with Arabic numerals collectors might recognize from the brand’s DB8 and DB10. Note that the seconds indication on this side is centrally based, unlike the tourbillon-based seconds indication at the 6 o’clock position on the other side.

De Bethune notes that two-dial watches and clocks have a long history, starting with multi-face tower clocks and extending to similarly equipped table clocks. More recently, we’re familiar with the famed dual-dial Jaeger-LeCoultre Reverso.  Serious collectors also wear certain two-faced watches from Bovet, Cartier and others.

To devise the new dual-dial watch, De Bethune had to re-design its famed floating lug case to allow the flip-over case to pivot easily, rotate on its central axis and then to click into place securely. This operation is a simple one because the brand equipped each side of the case with a clever rotating mechanism made up of twenty-eight steel and titanium components.

Equally important is the case’s middle section, which swivels naturally and frames the case and the crown. That crown lands gracefully at either 6 o’clock or 12 o’clock, depending on which side of the DB Kind of Two Tourbillon the wearer chooses to view.

Inside the watch De Bethune’s Caliber DB2579 features patented technical flourishes well known to De Bethune devotees. These include a titanium balance with white gold inserts (optimized for temperature differences and air penetration) and a self-regulating twin barrel. For the tourbillon, De Bethune utilizes the ultra-light, 30-second titanium design it first debuted in 2008.

Price: $250,000.

Specifications: De Bethune DB Kind of Two Tourbillon

Movement: Manual-wind Caliber DB2579 with five-day power reserve, self-regulating twin barrel (De Bethune Innovation, 2004), titanium balance wheel with white gold inserts, optimized for temperature differences and air penetration
(De Bethune Patent, 2016), balance-spring with flat terminal curve (De Bethune Patent, 2006), silicon escape wheel, and ultra-light tourbillon in titanium. 36,000 vibrations per hour. Finishing includes polished and chamfered barrel bridge with shot-blasted stages, polished and chamfered titanium minute bridge with microlight decoration and hand-snailed barrels.

Contemporary single-sided display: hand-polished and blued titanium for hours and minutes with polished inserts, ultra-light De Bethune 30’’ tourbillon in titanium. Hour ring and 30” polished titanium dial with shot-blasted stages, blued polished titanium hour-markers, silvered and relief minute dial.

Classic reverse side display: Hand-polished and blued titanium for hours, minutes and seconds. Dial silvered and relief, with convex levels and guilloché central part.

Case: 42.8mm by 9.5mm titanium with crown at noon on the front, at 6 o’clock on the back, and integrated into the case. Polished grade 5 titanium floating lugs (De Bethune Patent, 2006). Case turning mechanism that can be clearly positioned on the front or back. 
Water resistance to 30 meters.

Strap: Alligator leather, alligator lining. 
Pin buckle in polished grade 5 titanium.

Price: $250,000.

Fresh from winning the Grand Prix d’Horlogerie de Genève (GPHG) award as the year’s Best Chronograph for its Streamliner Flyback Chronograph, H. Moser & Cie. this week underscores the collection’s distinctive H. Moser design by offering a new edition of the watch with a Funky Blue fumé dial, a signature color for the brand.

The H. Moser Streamliner Flyback Chronograph Automatic Funky Blue.

Moser has applied the Funky Blue dial, with its sunburst pattern and eye-catching gradient color effect, throughout its collection, complementing similar fumé style dials with brown, red and even green hues. The color appears light in the center of the dial and becomes darker and deeper towards the outer edges.

This newest edition H. Moser Streamliner Flyback chronograph retains the technical ingenuity of debut that re-shapes how a flyback chronograph tracks elapsed time. Instead of developing a flyback function for a central seconds hands, H. Moser devised a wholly original method of tracking elapsed time with two chronograph hands, one for the minutes and one for the seconds. The minimalistic dial also shows current time with two display hands, one for the hours and one for the minutes.

The movement wizards at Agenhor developed the column-wheel chronograph with support from the technical teams at H. Moser & Cie. Also notable is the placement of the tungsten oscillating weight, which lies between the movement and the dial, allowing a clear view of the beautifully designed and finished caliber through the caseback.

The watch’s handsome steel cushion case measures 42.3mm in diameter, features an off-center crown and is topped with a slightly domed glass box-type sapphire crystal. Its new integrated steel bracelet features fluid lines based on organic forms. H. Moser named the Streamliner to recall the curved shapes that dominated the first high-speed trains of the 1920s. Price: $43,900.

SPECIFICATIONS: H. Moser Streamliner Flyback Chronograph Automatic Funky Blue, (Reference 6902-1201)

Movement: Automatic Caliber HMC 902 developed with AGENHOR for H. Moser & Cie., frequency of 21,600 vibrations/hour, bi-directional winding, tungsten oscillating weight, positioned between the movement and the dial, double barrel, column wheel chronograph, two-stage chronograph mechanism, horizontal clutch with friction wheel; smooth wheel equipped with micro-teeth, tulip yoke allows the chronograph to be triggered or released. Power reserve: minimum 54 hours

Case: 42.3mm by 12.1mm steel topped by a domed sapphire crystal, chronograph push-buttons at 10 and 2 o’clock, screw-in crown at 4 o’clock adorned with an engraved M, see-through case-back.

Dynamic water resistance to 120 meters, allowing the chronograph and flyback function to be used underwater.

Dial: Funky Blue fumé, hour and minute hands with Globolight inserts, minute track for the elapsed seconds and minutes, tachymeter on the flange, Hours and minutes displays, chronograph with central display and indication of the elapsed minutes and seconds, flyback on the minutes and seconds.

Bracelet: Integrated steel, folding clasp with three steel blades, engraved with the Moser logo.

H. Moser was awarded two prizes at the 2020 GPHG: One for the Streamliner Flyback Automatic Chronograph (Best Chronograph) and another for its Endeavour Cylindrical Tourbillon H.Moser X MB&F model (Audacity Prize).

At the end of every issue of International Watch, we present a one-page item about a watch with a particularly handsome rear view. It’s a popular feature we’ve published for many years­– in print only and within our online full-on digital editions. 

If you’re not subscriber to our quarterly print publication, perhaps you haven’t seen this feature. If you haven’t, below we remedy that sad state of affairs with just a few of our more recent BackStory items.

Enjoy the view.

 

BackStory: Armin Strom Masterpiece 1 Dual Time Resonance

Even from the back of this unusual 59mm x 43.4mm oval titanium case, Armin Strom’s Masterpiece Dual Time Resonance looks like no other wristwatch. While on the front you’d see a dual-time display, a 24-hour dial and two oscillators, from the back the view underscores that four barrels power these movements. As they delightfully unwind simultaneously, they become synchronized.

As a result of this resonance, a physical phenomenon, the watch creates a highly stable timekeeping rate that heightens overall precision. Resonance, a technically difficult (and hard to regulate) technique used by only a few other watchmakers, also means the watch is more efficient and is less prone to shock-inflicted error.

Indeed, Armin Strom say that its own laboratory testing has revealed gains in precision of 15-20% for two COSC chronometer-level regulated movements placed in resonance.

Armin Strom says that its Resonant Clutch Spring (which was initially developed for an earlier watch called the Armin Strom Mirrored Force Resonance) can take up to ten minutes to synchronize the two systems. To further back its claims regarding the technology, the CSEM (Centre Suisse d’Electronique et de Microtechnique) has officially certified Armin Strom’s resonance system based on the clutch spring as being a true system in resonance.

As is evident in this back view, Armin Strom has underscored its technical proficiency with and equally impressive high level of finish on the Caliber 17 ARF bridges and plates.

The back of the Armin Strom ARF17 caliber.


The Armin Strom Masterpiece 1 Dual Time Resonance, pictured here with a titanium case, is also available with a rose gold and white gold case.  Armin Strom has also introduced the watch cased in a clear sapphire case.

The Essentials

Movement: Armin Strom manufacture calibre ARF17 with manual-winding, frequency of 3.5 Hz (25,200 vph), patented resonance clutch spring, dual off-center time indications, 4 mainspring barrels, two independent regulation systems connected by a resonance clutch spring 419 total components, power reserves: 110 hours for each movement, 

Case: 59mm x 43.4mm x 15.9mm grade 5 titanium, sapphire crystal and case back with antireflective treatment, water resistance of 50 meters
Price: $169,000 (titanium case) to $268,000 (sapphire case)

 

BackStory: Greubel Forsey QP à Équation

Not long ago, Greubel Forsey debuted a red gold version of its QP à Équation, an exquisite ultra-complicated timepiece with complete perpetual calendar, tourbillon and equation of time function.

The watch, which was awarded the Grand Prix d’Horlogerie de Genève award for the best Calendar in 2017, utilizes a type of ‘mechanical computer’ to manage all the changes in the displays.

This ‘computer,’ which is Greubel Forsey’s seventh ‘invention,’ is an entirely integrated twenty-five-part component composed of a stack of cams with movable fingers that shift the indications on the dial and caseback. The month’s cam changes the month (seen on the front of the dial).

The back of the Greubel Forsey QP à Équation

But at the same time, different cams within that stack moves the Equation of Time disc, the year indicator and the seasons indication disc on the back, which is the focus of this issue’s Backstory page.

With it color-coded indicators, the Equation of Time display is the most visible of the back displays. . Essentially, the Equation of Time is the conversion factor between solar and mean time. This still rarely made complication seeks to distinguish the difference between solar time and mean time, which can vary from a few seconds to as much as sixteen minutes during the year

Greubel Forsey’s QP à Équation makes these calculations internally. The watchmaker-led construction team created an easy-to-read, color-coded display of the results on the caseback. The red portion shows when the sun is ahead of the solar mean time while the blue means the sun is behind solar mean time.

On the number scale, you see how many minutes the time is behind or ahead. The other colors show the seasons, the months are indicated using letters and two semi-circles show the equinoxes. An also-rare four-digit indicator displays the year.

And finally, if you’re wondering how all these calculations are made, feel free to watch the ‘mechanical computer’ itself, which is visible directly below a sapphire disc.

The Essentials 

Case: 43.5mm by 16mm 5N ‘Rose’ Gold

Movement: 36.4 mm by 9.6mm, 624 parts total w/86 tourbillon cage parts, flat black-polished steel tourbillon bridges, 75 olive-domed jewels in gold chatons, two coaxial series-coupled fast-rotating barrels (1 turn in 3.2 hours), 21’600 vibrations/hour, with a power reserve of 72 hours, Phillips terminal curve, Geneva-style stud, nickel silver main plates, frosted and spotted with polished beveling and countersinks, straight-grained flanks, nickel-palladium treatment, 4 engraved gold plates, 
one with the individual number, synthetic sapphire mechanical computer bridge.

Price: $695,000.

 

H. Moser’s new Streamliner Centre Seconds, the second model from the independent Swiss brand’s integrated steel Streamliner collection, focuses on timekeeping basics by displaying simple hours, minutes and seconds. But echoing so many H. Moser debuts, the real eye-catcher is the stunning fumé dial, here in “Matrix Green.”

The H. Moser Streamliner Centre Seconds

The dial appears to glow, framed within its brushed steel 40mm case that links ever so smoothly to the matching steel  bracelet – with no sign of a lug.  

To reach that integrated ergonomic end zone, H. Moser extends a carefully curved bracelet atop the wrist directly into the case. Not only does it feels smooth on the wrist with articulated, gently waving links, the bracelet looks resplendent with its vertically brushed and polished finishing.

H.Moser explains that its rounded curves required the Streamliner’s designers to hollow out the case middle, satin-finish the sides and then alternately brush and polish surfaces throughout.

Any watch named Streamliner needs to have a domed sapphire crystal, which H. Moser wisely uses to top the Centre Seconds. Under that subtly curved dome you’ll find unusual hands (including a curved minute hand) formed with inserts made from Globolight, a ceramic-based material that features SuperLuminova.

Inside this H. Moser Streamliner Centre Seconds model is the watchmaker’s own automatic HMC 200 caliber. The movement is equipped with a regulating organ manufactured by H. Moser & Cie.’s sister company, Precision Engineering AG. Nicely decorated by H. Moser with its brand-developed double stripe décor, the caliber also stands out from other with a gold oscillating weight. Price: $21,900.

Specifications: H. Moser Streamliner Centre Seconds, Reference 6200-1200

Movement: HMC 200 self-winding caliber, frequency of 21,600 Vph, automatic bi-directional pawl winding system, 18-karat gold oscillating weight engraved with the H. Moser hallmark, power reserve of 3 days, original Straumann Hairspring, finish with Moser stripes.

Case: 40mm by 9.9mm steel topped by a gently domed sapphire crystal, see-through case back, screw-in crown adorned with an “M”, water-resistant to 120 meters.

Dial: Matrix Green fumé with sunburst pattern, applique indices, hour and minute hands with Globolight inserts.

Bracelet: Integrated steel bracelet, folding clasp with three steel blades, engraved with the Moser logo.