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Greubel Forsey’s new GMT Earth puts the planet on your wrist

You might think that a watch as technically accomplished as the Greubel Forsey GMT comes from a centuries-old lineage. Not so. The reality is that this impressive model was only launched in 2011 — barely seven years ago. At the time — despite their already ambitious design brief — it constituted Greubel Forsey’s first foray into non-tourbillon complications, a bravura display of the company’s skill as applied to world time discs and miniaturised globes. This year, the La Chaux-de-Fonds manufacture are once again updating that design with the GMT Earth; rest assured — the new release retains all the madcap flair we’ve come to expect.

Greubel Forsey
The GMT Earth is a veritable fortress of complications. In profile, the wearer’s eye often strains to take in all the detail: including a two time zones; a miniature globe; and proprietary tourbillon.

As in previous iterations, the GMT Earth allows wearers to view two time zones: the primary is located at the 1 o’clock position; whereas the second, smaller timezone is located at 10 o’clock. It also follows in the footsteps of its predecessor with a power reserve indicator located between the main timezone and tourbillon cage. Tourbillons are the calling card of any Greubel Forsey timepiece, and while the company’s acclaimed work with this fascinating mechanism — arguably its raison d’ȇtre — deserves a separate documentary, it’s sufficient (for present purposes) to say that the GMT Earth utilises a proprietary 24-second version. This tourbillon combines high rotational speeds with an inclined angle in order to significantly improve performance, reducing the likelihood that the whirlwind-esque mechanism shall ever come to rest in a fully static position. Given their history as regulatory organs in pocket watches, it’s vital that tourbillons be in a state of constant oscillation. Even if you’re a pragmatist who questions their usefulness in modern watchmaking, one can’t deny that Greubel Forsey’s take successfully fuses superlative construction and finishing. (The tourbillon cage, weighing a featherlight 0.39 grams even incorporates a solid-gold counterweight!)

On its caseback, the Greubel GMT boasts a world time disc and 360 degree views of its miniature globe.

The GMT World is an unabashedly loud watch, but look past its seemingly chaotic visual design and you’ll be rewarded with numerous details worthy of closer analysis. This particular take on the GMT features a white-gold case engraved with Greubel Forsey’s “statement of purpose” and multi-level chapter ring manufactured using synthetic sapphire crystal. Deployment of these rare elements certainly invokes the “just because we can” attitude frequently associated with Greubel Forsey. But more importantly, it serves the broader purpose of making the dial’s composition complex and fresh. And what composition it is: akin to a certain miniaturised landmass from the title sequence of everybody’s favourite HBO show. The base dial, decorated with a sand-like brushing effect, sets the stage for layered visual depth that is diligently repeated throughout the timepiece: the secondary timezone, tourbillon cage and rotational globe all inhabiting different rungs on some sort of magical 3D map. Add to that the phenomenon of motion (when the GMT World is strapped to the wearer’s wrist) and you have yourself a fine feat of technical wizardry.

The GMT Earth is produced in a limited run of 33 pieces. It is priced at approximately US$611,280. For more, visit Greubel Forsey.

Randy Lai
Having worked in the Australian digital media landscape for over 5 years, Randy has extensive experience in men's specialist categories such as classic clothing, watches and spirits. He is partial to mid-century chronographs and a nice chianti.
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