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We continue to highlight a few of our favorite watches from among the more than fifty watchmakers that have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

Click here for details about the Only Watch world tour, which begins September 22.

Today, we highlight the offering from Zenith, which has teamed with artist Felipe Pantone for a spectacular special edition of its Defy 21 Double Tourbillon, which here is cased entirely of transparent sapphire crystal ­– a first for any watch in the Zenith Defy collection.

This watch, based on one of Zenith’s most complicated chronographs, is regulated by two independent tourbillons. They operate at five hertz (for the timekeeping function) and fifty hertz (for the 1/100th of a second chronograph). Pantone has transferred his own style to Zenith’s movement’s decoration and the open dial.

As Zenith explains, it has coated the bridges to reflect a gradient of metallic rainbow tones, marking the first time we’ve seen three-dimensional PVD with silicon particles as a surface treatment on a tourbillon chronograph movement. This produces an-eye-catching spectrum of colors. Zenith then fixes its movement within a case given the same rainbow effect. The caseback sports a similar rainbow PVD coating on the bridges, where “Unique Piece” is engraved on one of them under the blackened star-shaped winding rotor.

Pantone then distorts the central hour and minute hands to resemble lightning bolts. Echoing the movement, Zenith applies a rainbow gradient of colors in PVD to the hands, while each of the applied hour markers is filled with a different color. Zenith and Pantone create a crazy moiré optical effect on the dial, produced by thin alternating white and black using fine laser-engraving and precise lacquering techniques.

Finally, Zenith will package the watch in a special box resembling an art book and add an original signed artwork by Felipe Pantone.

Only Watch auction estimate: CHF 180,000 – 220,000.

We continue to highlight a few of our favorite watches from among the more than fifty watchmakers that have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from TAG Heuer, which has created the Only Watch Carbon Monaco made with echoes of the highly collectible black-PVD-cased Monaco Reference 74033N, known by aficionados as the “Dark Lord”. TAG Heuer made the original watch in limited quantities in the mid-1970s, and it never appeared in a Heuer catalog.

This one-of-a-kind edition is cased in carbon fiber and features the brand’s largest-ever sapphire crystal caseback, which TAG Heuer’s engineers designed to give the watch’s future owner a clear view into its bespoke movement. The watch’s skeletonized dial is worked from a single piece of carbon fiber.

Sitting on top of the carbon dial are three black galvanized brass plates. These form the watch’s chronograph and small-seconds subdials. Those orange hands echo the Only Watch’s 2021 color palette.

The movement here, while technically a TAG Heuer in-house Heuer 02 automatic chronograph, has been decorated by hand especially for this watch.

The movement is endowed with an unique rotor in the form of a hand-finished TAG Heuer shield, which  is also decorated with a gradient orange to yellow color of Only Watch 2021. The seamless transition from orange to yellow was achieved by hand, painted by the master dial artist and micro-painter André Martinez from Le Locle.

Indeed, TAG Heuer utilizes specialists Artime SA to create a high-level of finish throughout the movement. And finally, TAG Heuer has created a new leather strap that looks like a metal bracelet. All new for TAG Heuer, the process starts as silicon is injected into the sole of the leather. This is then heat-stamped with a mold in the shape of a metal link bracelet, creating the three- dimensional effect. Very cool, and impressive.

Only Watch auction estimate: CHF 50,000 to CHF 100,000.

We continue to highlight a few of our favorite watches from among the more than fifty watchmakers that have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from Blancpain, which created an Only Watch version of its highly collectible Tribute to Fifty Fathoms No Rad watch. The mid-1960s series is characterized with a stamp on the dial with a “no radiations” logo indicating that Blancpain did not use luminescent radium.

Here, the logo remains the dial’s highlight, but the logo’s original yellow and red colors have been replaced by Only Watch orange and yellow. Blancpain fits the watch’s unidirectional rotating bezel with a sapphire insert, direct from the current collection.

And while it may not always come across in images, the domed glassbox-type sapphire crystal Blancpain attaches here is outstanding. It quite effectively contributes to the multi-level effect of the dial. From the back, you’ll see a black rotor in solid gold bearing a special “Only Watch” inscription.

Only Watch auction estimate: CHF 12,000 to CHF 18,000.

We continue to highlight a few of our favorite watches from among the more than fifty watchmakers that have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from Maurice Lacroix, which has teamed with Mahindra Racing to create a special edition of its Aikon Master Grand Date. The one-off model for Only Watch 2021 features a 47mm case formed using the same carbon fiber actually used by on a Mahindra Racing car.

This is the first time Maurice Lacroix Aikon made using a carbon fiber case. The bright-dialed watch, sports its embossed off-center hour and minutes display in the official Only Watch orange color, framed with a yellow circlet. The hands and indexes are executed in black and lined with yellow SuperLuminova, just above an open-worked small seconds dial. The main area of the dial is actually the reverse of the mainplate and here is vertically brushed and capped with orange PVD. The curved balance bridge is presented in black DLC and features an open-worked, twin-beam design that clears a direct view of the escapement.

Maurice Lacroix will invite the successful bidder for this watch to attend a 2022 round of the ABB FIA Formula E World Championship as a guest of Mahindra Racing, where they can look forward to a full VIP hospitality package.

Only Watch auction estimate: CHF 12,000 to CHF 18,000.

 

This year more than fifty watchmakers have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from H. Moser & Cie., which has placed its much-acclaimed Cylindrical Tourbillon made in partnership with MB&F last year into the exceptional 40mm H. Moser Streamliner steel case.

To review, the caliber here is designed as sculptural work of art and is topped with a domed sapphire crystal. It features a one-minute flying tourbillon equipped with H. Moser’s cylindrical hairspring, produced by Precision Engineering AG, H. Moser & Cie.’s sister company.

And with the case and bracelet, with its articulated links and brushed and polished finishing, also weighing in as functional eye-candy, we expect this watch to exceed its auction estimate.

Only Watch Auction Estimate: CHF 60,000 – CHF 80,000.

This year more than fifty watchmakers have created timepieces for the Only Watch charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from F.P. Journe. The independent watchmaker’s entry into the auction is a stunning central-dial automaton inspired by a mechanical hand created by Ambroise Paré (1509-1590), the father of modern surgery, this unusual 42mm tantalum-cased watch displays time via hand-signs. The hand will rotate to the hour marker (indicated by the pointer) and will show a specific number of fingers to indicate the hours. At 1 o’clock, for example, only one finger will appear while the others remain clenched (see below).

The automaton is powered solely by the Octa movement’s mainspring.

F.P. Journe devised the movement from his Octa Caliber 1300, which celebrates its 20th anniversary in 2021.

Journe explains: “This watch was born in 2012 while having dinner at Francis Ford Coppola’s house in the Napa Valley. He asked me if it could be possible to tell time with a hand in a watch. I replied that the idea was interesting and required thinking about it. But how to display 12 hours with 5 fingers? It was not an easy matter and this complex challenge inspired and motivated me. Once I figured it out, Francis immediately sent the sketches for the fingers positions. After more than 2 years, I could finally focus on “Fecit”. After 7 years of development, I am proud to present the FFC prototype”.

We expect the final sale price for this watch to exceed its auction estimate.

Auction estimate: CHF 300,000 – CHF 400,000.

 

With the ninth edition of the Only Watch auction only weeks away, we’re reminding readers about the lineup of incredible watches set for auction at the biennial charity event.

This year more than fifty watchmakers have created timepieces for the charity auction, which commences Saturday, November 6, in Geneva. Christie’s will auction these incredible watches to raise funds that benefit research in the battle against Duchenne Muscular Dystrophy.

While you may have seen a few of the watches set for auction earlier this year when Only Watch announced them, we thought you’d enjoy seeing many of these inspired designed again just ahead of the event.

Note than some of our readers may be able to see all the Only Watch offering in person in the weeks just prior to the event.

The watches will tour the globe starting September 22 in Monaco, and can then be seen in exhibitions in Dubai (September 30 to October 3), Tokyo (October 8 to 10), Singapore (October 15 to 20), Hong Kong (October 25 to 27), Macau (October 28) and finally back in Geneva on November 4-6. Click here for details about the Only Watch world tour.

Today, we highlight the offering from Bell & Ross, which has devised this BR01 Cyber Skull Sapphire, an orange-tinged, all-sapphire example of a series of Skull watches Bell & Ross has offered in recent years.

Bell & Ross machined the sapphire case from three blocks of sapphire and created the skull itself from six blocks of sapphire. The Skull dial was metalized on the back with the Only Watch orange color, a hue that also happens to be one of the colors of choice to enhance legibility in airplane cockpits. The back of the watch also features a special engraving for Only Watch.

In addition to clearly impressive sapphire work here, Bell & Ross has added a fun technical feature that will likely bring grins to the wearer. The automaton movement activates the jaw, which opens and appears to snigger when the wearer winds the spring.

Only Watch auction estimate: CHF 90,000 – CHF 110,000.

 

 

Parmigiani Fleurier updates its Tonda collection with a cleaner, pared-down sub-collection dubbed Tonda PF. The new line exhibits a less ornamented Tonda dial design, which the watchmaker attributes to a carefully considered ‘sartorial’ approach to the update.

The new Parmigiani Fleurier Tonda PF collection includes a chronograph, a split-seconds chronograph, an annual calendar and a two-hand, time and date model. With the exception of the split-seconds edition, the three new Tonda PF debuts are all available in steel with a platinum hand-knurled bezel or in a rose gold case.

It’s not just the wide-open dials that characterize the new Tonda PF. The newly designed, extra-long openwork hands are now made of solid gold. The new bezel echoes many of the brand’s original Tonda designs, but adds a subtle knurling that, surprise, is made by hand in luxurious platinum.

The bezel on each steel Tonda PF is hand-cut in platinum.

This rare combination speaks volumes about the details Parmigiani Fleurier has built into this handsome new collection. Ever modest, the watchmaker claims the platinum flourish is “Not for the sake of exclusivity, but because it provides a better, shinier play with light and a more artisanal feeling once polished by hand.”

In my mind the platinum bezel is a hidden treasure – not unlike Parmigiani Fleurier itself.

And finally, Parmigiani Fleurier has updated the bracelet for the new collection. Now wider near the bezel and narrower along the length, the bracelet exudes a tailored approach to watchmaking and likely feels slimmer when worn. The horizontal-satin-finished surface here perfectly echoes the upper surface of the lugs.

The new Parmigiani Fleurier Tonda PF Micro-Rotor.

Tonda PF Micro-Rotor

This slim 40mm by 7.8mm two-hander underscores its name with a luxurious platinum micro-rotor to echo the bezel (on the steel model).

The precious oscillating weight (pictured above) powers the latest iteration of Parmigiani Fleurier’s caliber PF703. The dressy date/time display offers a date disc colored to exactly matches the minute track, all placed within a matte guilloché dial, and cut to a turn. Prices: $22,900 (steel) and $53,900 (rose gold).

The new Parmigiani Fleurier Tonda PF Micro-Rotor, in rose gold case and bracelet.

The Tonda PF Chronograph

With its integrated high-frequency (5 Hz, or 36,000 vph) Caliber PF070 movement, this 42mm model retains a clean two-register chronograph layout alongside a small seconds subdial. The new lightly guillochéd dial design extends to its bezel with a sandblasted minute track and counter edges.

The Tonda PF Chronograph

The case is dressy, with subtle teardrop pushers, and when turned over reveals a beautifully finished openwork rose gold rotor with a PF logo (pictured below). Prices: $31,000 (steel) and $69,700 (rose gold).

The Parmigiani Fleurier Tonda PF Chronograph, in rose gold.

Tonda PF Annual Calendar

In its 42mm case, Parmigiani Fleurier’s Caliber PF339 powers the Annual Calendar, which displays a retrograde date, day, month and a moon phase aperture, showing both hemispheres.

The new Tonda PF Annual Calendar.

New here is Parmigiani Fleurier’s placement of the date onto the minute track and a careful addition of subtle subdial outlines to a grey guilloché dial. The dial font is ultra clean and the moon phase indicators seem to glow against the dial. Prices: $38,700 (steel) and $77,500 (rose gold).

The new Tonda PF Annual Calendar, rose gold edition.

The Tonda PF Split Seconds Chronograph

At the top of the collection’s price range, this complicated model is offered as a limited series of twenty-five, meant to celebrate the brand’s twenty-fifth birthday.

The watch offers a dial, case and bracelet made of platinum and a stunningly beautiful high frequency, open-worked movement built from gold. The watch’s integrated split-seconds chronograph allows the user to time two events starting at the same time, down to the tenth of a second.

The Tonda PF Split Seconds Chronograph.

If a gold movement and platinum case aren’t luxurious enough, add on the platinum bracelet to match the case and you have a genuine high-end offering in every sense of the word.

The Caliber PF361 inside the watch is a new version of Parmigiani Fleurier’s most high-end caliber, namely the inspired and GPHG-award winning ChronOr. In addition to a solid rose gold mainplate we see extensively open-worked, satin-finished and beveled bridges. Exquisite. $171,600.

Bulgari this week pays tribute to Gerald Genta with a renewed version of the famed designer’s Mickey Mouse watch. At the same time the watchmaker/jeweler adds a world time watch to its Octo Roma collection and revives a Papillon central tourbillon design, now set in an Octo Roma case. The original Papillon was a Daniel Roth jumping hour invention with ‘butterfly’ hands.

These debuts were just three Bulgari highlights at Geneva Watch Days 2021, where the Italo-Swiss watchmaker launched nine new models. These also included new models in the jeweled Divas’ Dream lineup and three Divina Mosaica watches, including one spectacular diamond-set model fitted with Bulgari’s thin minute repeater movement.

The new Gerald Genta Arena Retrograde with smiling Disney Mickey Mouse.

Gerald Genta Arena Retrograde with smiling Disney Mickey Mouse

Bulgari’s retro Retrograde watch, starring the world’s most famous mouse, pays tribute to the genius of Gerald Genta, who placed Mickey Mouse (and other Disney characters) on his own high-end watches starting in 1984. The Gerald Genta Mickey Mouse watches are today much sought-after by collectors.

You may recall that Bulgari in 2019 launched the first ode to Genta with its 50th Anniversary Arena Bi-Retro, which Bulgari released with only Gerald Genta’s name on the dial. Last year we saw a titanium version of the watch.

Those debuts recalled Bulgari’s acquisition of the Gérald Genta and Daniel Roth brands in 2000, a purchase that has played a significant role in building Bulgari’s haute horlogerie expertise.

Gérald Genta, who died in 2011 at the age of 80, designed many of the icons of modern watch design, including the Universal Genève Polerouter, the Audemars Piguet Royal Oak, the IWC Ingenieur, Cartier’s Pasha, the Omega Constellation, the Bvlgari Bvlgari and the Patek Philippe Nautilus. Many of these designs remain bestsellers for their respective brands.

This new Gerald Genta Arena Retrograde with smiling Disney Mickey Mouse marks the return of one of the most sought-after Genta designs. The watch’s debut also marks the next level in Bulgari’s ongoing reboot of the Gerald Genta line as its own brand. To accompany that expansion, Bulgari is developing a new Gerald Genta website.

The new watch almost perfectly mimics many of the original Gerald Genta designs, here nicely settled into 41mm steel Gerald Genta Arena case. In this version you’ll find Mickey showing the time amid an also-playful rhodium-plated sunray dial. Mickey’s left arm and white-gloved hand indicates the minutes on a 210-degree retrograde dial as a jumping hour indicator shows the hour at the 5 o’clock position.

Bulgari is making the Gerald Genta Arena Retrograde with smiling Disney Mickey Mouse as a limited edition of 150-pieces, all available only online at Bulgari. Price: 16,500 euros, with January 2022 delivery.

Octo Roma WorldTimer

Bulgari developed a new movement, Caliber BVL257, to power this world time watch, a first for the Octo Roma collection. And as a travel watch, it features instant reading of the time in twenty-four cities, which corresponds to the world’s primary time zones. This launch comes just days after the debut of another well-received Bulgari travel model, the Aluminum GMT watch.

The new Bulgari Octo Roma WorldTimer.

Echoing classic world timer dial layouts, the Octo Roma WorldTimer offers a central display of the hours, minutes and seconds combined with a double rotating disc on the outer edge. One of the disks is set with the names of the reference cities while the second displays the 24-hour scale. When read in tandem, they allow the wearer to read the time in multiple time zones.

The Octo Roma WorldTimer is also available with a black DLC case and black rubber strap.

Bulgari took some liberties with the cities listed around the dial of this new watch, opting to swap the more common Bermuda for St. Barts, and representing cities where Bulgari has (or will soon have) one of its own hotels.

This sporty watch is built within the brand’ excellent multi-faceted Octo Roma 41mm steel case with a blue dial and matching steel bracelet. A stealthier version can be had in a black DLC case with a black textured rubber strap. Price: $8,350.

We’ll have more details about Bulgari’s Geneva Watch Days launches in upcoming posts. We’ve posted a few teasers below for those who can’t wait until then.

The new Octo Roma Central Tourbillon Papillon. At the end of the 60 minutes indicated by one of the “butterfly” hands, the disc jumps to display the new time in the aperture.
The incredible Bulgari Divina Mosaica Minute Repeater.
Two debuts in the Divas’ Dream collection include models with dials in lapis lazuli (pictured) and malachite.

 

Specifications: Gerald Genta Arena Retrograde with smiling Disney Mickey Mouse

Movement: Mono-retrograde movement, jumping hour aperture at 5 o’clock, retrograde minutes hand on a 210-degree sector, 28,800 vph, 42- hour power reserve.

Case: Jumping hour aperture at 5 o’clock, retrograde minutes hand on a 210-degree sector.

Strap: Red textured padded rubber with Gerald Genta folding clasp in polished stainless steel.

Price: 16,500 euros, with January 2022 delivery.

 

Specifications: Bulgari Octo Roma WorldTimer Stainless Steel

Movement: Automatic BVL257 with World time display, hours, minutes and seconds, 24 time zones and 24-hour indicator; 42-hour power reserve, frequency of 28,800 vph (4Hz).

Case: 41mm by 11.35mm 904L stainless steel with satin-brushed/polished finish, satin-brushed/polished bezel, transparent back, screw-lock steel crown set with a ceramic decoration and serving to set the time as well as the cities indication; water-resistant to 100 meters.

Dial: Blue sunburst, applied brushed rhodium-plated gold hour-markers.

Bracelet: Satin-brushed/polished steel bracelet with triple-blade folding clasp.

Price: $8,350.

 

Specifications: Bulgari Octo Roma WorldTimer Steel DLC (Diamond-Like Carbon)

Movement: Automatic BVL257 with World time display hours, minutes and seconds, 24 time zones and 24-hour indicator; 42-hour power reserve, frequency: 28,800 Vph (4Hz).

Case: 41mm by 11.35mm 904L steel, black sandblasted DLC (Diamond Like Carbon) finish, transparent caseback, screw-lock crown in DLC black steel set with a ceramic decoration and serving to set the time as well as the cities indication, water-resistant to 100 meters.

Dial: Matte black sandblasted, hour-markers, hours and minutes hands enhanced with SuperLuminova.

Strap: Black textured rubber strap with DLC steel pin buckle.

Price: $8,350.

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.