Tag

mechanical watch

Browsing

Alpina revives the hunter-style flip-open caseback with its new limited edition Startimer Pilot Heritage Automatic. The new model, which features a vintage-style dial and a new case, includes the hunter design, in part to reference an earlier Startimer Pilot watch from 2015 that also featured the retro style.

The new Alpina Startimer Pilot Heritage Automatic.

This latest addition to the pilot series is built with a 44 mm steel case that frames a matte black dial displaying luminescent beige hour, minute and 24-hour markers that nicely replicate a typical shade used on pilot watches starting in the 1930s and 1940s.

Additional vintage details include the triangular Alpina logo on the dial, which utilizes the original font used by Alpina during the peak of the manufacturer’s mid-century pilot watch production. The logo, which differs from the logo Alpina places on its contemporary pilot models, also serves a practical purpose by separating the 11 o’clock and 1 o’clock markers. A colorful red counterbalance on the seconds hand accents the all-business dial, which includes a date indicator.

Alpina decorates the outside of the revived hunter caseback with a fine perlage pattern. When clicked open by pressing the button at 4 o’clock, the back exposes a Sellita-based AL-525 automatic movement sporting a darkened rotor, and otherwise basic finishing.

The crown and the strap also echo the vintage pilot design. The former is large and grooved while the latter is brown and calfskin, accented with beige topstitching.

With this launch, Alpina continues its support of the National Park Foundation as an official partner. For every Startimer Pilot Automatic 40mm purchased through the brand’s U.S. website, Alpina will donate $100 to the parks.

Limited to 1,883 pieces, the new Alpina Startimer Pilot Heritage Automatic is priced at $1,295.

 

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.

 

At the beginning of the 20th century, German-based Junghans was the largest clock manufacturer in the world. When it needed new, larger facilities in which to manufacture those clocks, the company teamed with architect Philipp Jakob Manz, who designed Terrassenbau, a dramatically terraced set of workplace buildings for the clockmaker. The building, in Schramberg, is one of the most spectacular industrial buildings worldwide to be built on a sloping site.

The Junghans Terrassenbau buildings.

The building, which today houses the Junghans museum, instantly became the centerpiece of the sprawling Junghans factory. During the 1950s and 1960s, the heyday of firm’s mechanical movements manufacturing era, Junghans created and manufactured numerous calibers in the building just in front of the site, with caliber and watch assembly conducted in the terrace building itself.

The Junghans Terrassenbau assembly room, pictured in 1920.

The long expanse of windowed floors allowed watchmakers to work with perfect daylight on assembly and regulation, uninterrupted by workers conducting other watchmaking processes.

The Terrace Building now houses the Junghans museum.

New watches

Just two years ago, Junghans celebrated 100 years of the architectural history of the facility with a limited edition, 40.7mm gold-cased Meister Chronoscope Terrassenbau. This year, Junghans debuts two steel-cased, non-chronograph Terrassenbau models, each a 1,500-piece limited edition.

Junghans Meister Classic Terrassenbau, an automatic model. ($1,895)

One, the Meister Classic Terrassenbau (Master Classic) is a three-hand automatic watch with date in a 38.4mm steel case. The second is a 37.7mm steel-cased, manual-wind time-only watch, the Meister Handaufzug Terrassenbau (the Master Handwind) with small seconds. Both watches feature ETA-based calibers upgraded by Junghans.

The Junghans Meister Handaufzug Terrassenbau, a manual-wind model. ($1,695)

In addition to their Terassenbau-colored dials, these new models incorporate elements of the Schramberg facility into their design. For example, the minute track of the matte-silver dial reflects the meandering design of the wall decorations in the terrace building, while the green alligator leather strap echoes the dark green of the wall tiles in the stairways.

The Master Handwind (Meister Handaufzug) Terrassenbau , showing caseback with ‘windows’ exposing the movement.

Even the caseback of each watch reveals a detailed image of the source of inspiration itself, applied using Junghans’ own printing plant. Also from the back, small windows provide a view into each watch’s movement.

The new watches are limited to 1,500 units each. Prices: The Jungians automatic Meister Classic Terrassenbau is $1,895 and the Junghans Meister Handaufzug Terrassenbau, the manual-wind model, is $1,695.

 

When Louis Erard debuted this watch late last year, we knew its days were numbered. This week the independent Swiss watchmaker announced that only a handful of models remain in the limited edition collection featuring a design by famed architect and watchmaker Alain Silberstein.

Available in two limited editions of 178 watches, the watch not only was Silberstein’s first-ever regulator, but it was also the first time Louis Erard had ever turned over its atelier to a guest designer. While the watchmaker did collaborate with watch designer Eric Giroud earlier in 2019 with a redesign of the Louis Erard Excellence Regulator, the collaboration with Silberstein gave the designer carte blanche.

As it turns out, Silberstein hadn’t designed a regulator in his four decades of making colorful, modernistic watches, so the function appealed to him on several levels. Fortunately, this also perfectly tied into the focus function of many existing Louis Erard offerings, primarily within its Excellence collection.

As a display seen historically on clocks used in watchmaking ateliers to set the hands of pocket watches, the regulator focuses the eye on a larger minute hand. Technically, by separating the indications of the hours, minutes and seconds, chronometric precision can improve.

As Alain Silberstein relates in Louis Erard’s promotion of this collaboration, the regulator transports him “far away to the clocks on buildings which historically told the time with just one hand, or to train station clocks.”

The 40mm steel watch is powered by an ETA 7001 manual-wind movement with Louis Erard’s own regulator module.

Two colors

Silberstein created one design with two color combinations for Louis Erard. He started with a large arrow for the central minute hand, which is yellow on the black-dialed version of the watch and deep blue on the white version.

The remainder of the dial shows us pure Silberstein: the geometric simplicity of rectangles, triangles and circles. Bauhaus movement, which in 2019 celebrated 100 years since its birth, inspired Silberstein’s use of primary colors.

The 40mm steel watch, powered by an ETA 7001 manual-wind movement with Louis Erard’s own regulator module, is a bargain at its CHF 2,800 price tag (approximately  $3,000).

 

SPECIFICATIONS

Louis Erard Excellence Le Régulateur Louis Erard x Alain Silberstein

Movement: Manual winding regulator with power reserve, ETA Peseux 7001 movement with Louis Erard RE9 complication, 21,600 VpH (3Hz), 42 hours of power reserve. Côtes de Genève decoration, blue screws and Louis Erard engraving. Functions: hours, minutes and seconds. Hour hand on counter at 12 o’clock, central minute hand, seconds hand on counter at 6 o’clock, power reserve hand at 9 o’clock.

Case: 40mm steel or stainless steel + black PVD, 3 parts, sapphire crystal with anti-reflective treatment on both sides, case back with screws, top grade movement visible through the transparent case back, water-resistant up to a pressure of 50 meters, specially-decorated case back crystal with “Alain Silberstein X Louis Erard 1 of 178.”

Dial: Black and white matte or opaline (matte silver). Signature hands designed by Alain Silberstein. Red lacquered hour hand, yellow or blue lacquered minute hand, blue or yellow lacquered seconds hand, white or grey lacquered power reserve hand.

Strap: Black calf leather with signature stitching in red or brown calf leather with signature stitching in blue, pin buckle in stainless steel or stainless steel + black PVD.

Price: CHF 2,800. Developed in collaboration with Alain Silberstein in two limited editions of 178 pieces.

Greubel Forsey has re-engineered the unusual ovoid case it developed for the 2019 GMT Sport to develop the all-new Balancier S,  showcasing a large, high-precision inclined balance wheel and gear train.

Greubel Forsey’s new Balancier S

Now fit with a new movement, the new, sleeker version of that ovoid case frames a dramatic double suspended arched bridge holding an inclined gear train, all adjacent to the large (12.6mm) inclined balance wheel that gives the watch its name.

The Balancier S’s balance, which parallels the lower dial portion and sits at a 30-degree angle, provides what Greubel Forsey terms an “outstanding solution for limiting timing errors due to the effects of gravity on the regulating organ (balance wheel, spring and escapement) in stable positions.”

Recall that the watchmaker has utilized this escapement angle with great success within numerous tourbillon debuts in recent years, including the Tourbillon 24 Secondes, Quadruple Tourbillon and the Double Tourbillon 30°. For the first time however, we’re seeing the inclined balance alone rather than as a component within a tourbillon cage. 

Oval crystal

Like last year’s ovoid debut, the Balancier S appears circular from above, but once seen on the wrist betrays its extensive angular and curved attributes, including an oval, arched sapphire crystal, curved hour and minute hands, integrated lugs and strap and a satin-finished bezel engraved with the familiar script outlining Greubel Forsey’s ‘values.’

The new movement in the Balancier S operates with two coaxial barrels mounted in series offering a 72-hour power reserve (shown at 2 o’clock via a skeletonized red-tipped hand). A small seconds hand at 8 o’clock, also placed at a 30-degree angle, underscores the impressive depth Greubel Forsey built into this new caliber.

The watch’s unusual titanium case, sealed for 100 meters of water resistance, is echoed in a beautifully finished titanium mainplate and titanium bridges, which the watchmakers here say “proved much more difficult for manual hand-finishing than steel or even nickel silver.” Likewise, Greubel Forsey’s finishing reaches its usual high standards with extensive frosting, polished bevels and countersinks, circular and straight graining.

This Balancier S continues Greubel and Forsey’s foray into the sporty frontiers of high-end chronometry. Now that many collectors have made peace with the watch’s unusual ovoid case, expect many to look forward to additional sporty high-horology designs from this highly technical team. I already do.

Price: 195,000 Swiss francs. Eighteen pieces will be made.

 

Specifications: Greubel Forsey Balancier S

Movement: Balancier S manual-wind with 72-hour power reserve, escapement inclined 30 degrees, two coaxial series-coupled fast-rotating barrels, relief-engraved text, circular-grained, black treatment, polished chamfer, titanium and frosted bridges and mainplate, multi-level, suspended-arch bridge, polished with black treatment in relief, polished beveling and countersinks. Movement side: frosted bridges, polished edges and beveling
, gold plate with engraved limitation number.

Case: 45mm by 13.75mm titanium with curved synthetic sapphire crystal, three-dimensional, variable geometry-shaped bezel with raised engraved text, profiled lugs, case band with rubber, transparent back with high domed synthetic sapphire crystal, titanium security screws
, raised engraving. Crown is titanium and rubber with GF logo, color-coded rubber capping, interchangeable.

Dial: Three-dimensional, variable geometry hour-ring, lacquered hours and minutes indexes, power-reserve indicator, engraved and lacquered, gold small seconds dial, rhodium-colored, polished bevel, curved hour and minute hands in polished steel, small seconds w/red finish.

Strap: Rubber with text in relief
, titanium folding clasp, engraved GF logo

Price: 195,000 Swiss francs