Limited Edition of 33 Pieces
The GMT Sport done in titanium,, is the very first Greubel Forsey creation with a completely integrated metal bracelet.
Entirely conceived in the Atelier and specifically for this timepiece, it is fully integrated into the case of the GMT Sport and profiled to seamlessly follow the elliptical shape of its case and bezel. Greubel Forsey has devoted particular attention to its finishing with three distinct styles distributed over both the lateral and central links: straight graining, frosting and hand-polished bevelling.
Technical Specifications:
The case, in titanium, measures 45mm x 17.8mm. It has a curved AR-coated sapphire crystal, a sapphire display back, and it is water resistant to 100 meters. Three-dimensional, variable geometry-shaped bezel, hand-polished with hand-finished straight graining. Profiled lugs, screwed fixing. Engraved pushers. Titanium security screws. Titanium and rubber crown with GF logo. Color-coded rubber capping, interchangeable.
Movement is a Swiss manual-wind Greubel Forsey caliber with 63 jewels, 21,600 vph and a power reserve of 3 days. It features Olived-domed jewels in gold chatons. Two co-axial series-coupled fast-rotating barrels (1 turn in 3.2 hours), one of which is equipped with a slipping spring to avoid excess tension. Variable-inertia balance wheel with gold mean-time screws (10mm diameter). Phillips terminal curve. Geneva-style stud.
Bridges and main plate in titanium. Frosted and spotted, polished bevelling and countersinks, straightgrained flanks, blue treatment. Multi-level, openworked and polished suspended-arch bridge, polished bevelling and countersinks, straight-grained flanks. Openworked flat black polished tourbillon bridge, spotted, polished bevelling and countersinks, straight-grained flanks. Involute circle profile gearing with tangential inclined gear on fixed wheel and on escape wheel pinion. Inclined gear and profiled teeth on intermediate wheels of the sethands mechanism. Tourbillon: Inclined at a 25° angle, 24-seconds rotation. Light alloy cage pillars. Titanium cage bridges and a gold counterweight. Functions are: hours and minutes, on suspended-arch bridge. Small seconds on disc. 72-hours power reserve on a sector. 24-seconds tourbillon rotation. Rotating titanium globe with universal time, day-and-night, and second timezone GMT. Movement side: 24 timezones universe.
Dial has a three-dimensional, variable geometry hour-ring, with luminescent hours and minutes indeces. GMT indicator with raised engraving. Power-reserve indicator, engraved and lacquered. Tourbillon rotation indicator in gold. Rotating globe with fixed day-and-night UTC indicator in sapphire, engraved and lacquered.
Movement side: sapphire disc displaying city names surrounded by 2 rings (UTC engraved on the case / Summer time engraved on a gold movement plate, lacquered and hand matte-lapped). "Summer time" plate with limitation number, raised engraving, hand matte-lapped. Curved profile hands in polished steel with SuperLuminova 2nd timezone GMT indicator, grey triangle. Small seconds, fixed red triangle. Power-reserve indicator in polished steel. Aluminium 24-seconds double-tipped hand, black treatment.
It comes on a titanium bracelet with fine adjustment folding clasp. Blue rubber strap with text in relief, titanium folding clasp.
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