The All-New, More Compact Greubel Forsey GMT Balancier Convexe in Blue
This sophisticated GMT timepiece has been downsized, while its ergonomics and functionality have been enhanced.
In 2011, Greubel Forsey unveiled a stunning, three-dimensional GMT complication. Featuring a rotating terrestrial globe and an inclined 24-second tourbillon, the watch was housed in a uniquely shaped case—with a raised section to accommodate the globe and a side window that allowed for a clear view of its rotation. A decade later, the brand introduced another GMT model, this time utilizing a sleeker, convex-shaped case and omitting the tourbillon. In its place, the watch featured an inclined balance wheel and a more centrally positioned rotating globe. The latest iteration, the blue GMT Balancier Convexe—revealed during Geneva Watch Week—is slightly more compact and incorporates a power reserve indicator on the dial.
First unveiled last year at Dubai Watch Week, this redesigned GMT timepiece features a deeper color palette and improved ergonomics. The diameter of the titanium case has been reduced from 43.5 mm to 42.9 mm, while the bezel—the wider central section of the case—has shrunk from 46.5 mm to 44.9 mm. The case thickness remains 15.1 mm (or 17.6 mm including the curved sapphire crystal). The arched bezel, finished with a combination of hand-polishing and straight-graining, aligns perfectly with the convex curvature of the case and the sapphire crystal, creating a striking visual effect. The titanium crown, which features a blue rubber grip, complements the blue dial. A rectangular push-piece integrated into the case allows for one-hour incremental adjustments to the GMT time, which simultaneously rotates the terrestrial globe. While the case dimensions may still strike many as rather large, its curved profile and lugless design allow it to sit snugly against the wrist—as you can see, it does not feel oversized even on Brice’s 16.5 cm wrist. Given that the watch now incorporates a power reserve indicator—a feature requiring an additional 73 components—the case size was kept in check by trimming the protruding bezel and internal gaskets, which resulted in a reduced water-resistance rating of 50 meters. fake luxury watches
On the “deck” of the watch, the deep blue oceans—accentuated by the relief-engraved continents on the rotating globe—extend across the surface of the bridges. These bridges are finished with a delicate brushed texture that plays beautifully with the light. This expansive, amphitheater-like space surrounds a titanium globe, which rotates in real-time over a 24-hour cycle. A 24-hour scale encircling the globe provides an intuitive, at-a-glance indication of global time, including the transition between day and night; meanwhile, a 12-hour sub-dial at the 9 o’clock position displays GMT or a second time zone. To further assist with world-time tracking, the case back features an engraving of 24 reference cities aligned with a 24-hour scale, with an inner ring indicating Daylight Saving Time (DST).
The watch’s balance wheel is a marvel in its own right, rivaling even a tourbillon in its visual spectacle. Oscillating at a frequency of 3 Hz, it spans the lower portion of the dial, stretching from the 6 o’clock to the 8 o’clock position. Inclined at a 30-degree angle, the balance wheel appears to float in mid-air—a signature, proprietary innovation designed to enhance chronometric performance. Comprising 59 individual parts and measuring 12.6 mm in diameter, the balance wheel is secured by a mirror-polished steel bridge. The hour and minute hands are designed as red arrows and inlaid with a luminescent coating, while a solid red arrow indicates the second time zone. A small, gold-toned seconds hand—rendered in blued steel—is positioned at 5 o’clock. swiss fake watches
Given the prominent placement of the globe, there is little room on the dial for additional features without compromising its overall aesthetic. Nevertheless, a power reserve indicator has been ingeniously integrated into the limited space to the left of the globe, featuring a slender hand at 11 o’clock that points toward a 72-hour scale. To further enhance the dial’s presentation, the inner surface of the titanium bezel ring has been mirror-polished. The patented, manually wound movement—comprising 496 components—utilizes two high-speed, series-coupled mainspring barrels to provide a 72-hour power reserve for all the functions displayed on the dial.
The GMT Balancier Convexe is presented on a blue textured rubber strap with a titanium folding clasp (a titanium bracelet is also available as an option).
Technical Specifications – Greubel Forsey GMT Balancier Convexe
Case: 42.9 mm diameter (bezel: 44.9 mm) x 15.1 mm thickness (17.6 mm including sapphire crystal) – Titanium – Variable-geometry bezel – GMT pusher engraved on the case – Titanium crown with blue rubber grip – Curved synthetic sapphire crystal – Water-resistant to 50 meters
Dial: Rotating titanium globe with relief continents, featuring a 24-hour scale and day/night indicator – Outer chapter ring for local time, with a red-tipped arrow hand (luminous-coated) – Bridges finished in a frosted “ocean blue” – Gold GMT sub-dial at 8 o’clock with a solid red arrow hand – Gold small seconds sub-dial at 5 o’clock – 30-degree inclined balance wheel – Power reserve indicator in the upper-left quadrant
Movement: Patented manual-winding movement – 496 components – 72 jewels – Dimensions: 37.8 mm x 13.8 mm – Double series-coupled mainspring barrels – 72-hour power reserve – Frequency: 21,600 vph (3 Hz) – In-house 30-degree inclined variable-inertia balance wheel – Functions: hours, minutes, small seconds, GMT sub-dial, world-time rotating globe with day/night indicator – Caseback display showing world time for 24 time zones, including daylight saving time indicators
Strap: Hand-stitched textured or patterned rubber strap with a titanium folding clasp – Titanium bracelet available upon request . https://www.perfectwrist.co/
