Greubel Forsey continues to expand its Convexe collection, a relatively new series of watches characterized by a convex bezel and crystal that showcases the multi-level, multi-dimensional nature of its complicated movements.
The newest addition, the Double Balancier Convexe, finds the watchmaker’s existing Double Balancier movement (in its latest 2016 iteration) presented in a convex titanium case with a dramatic curved layout displaying the caliber’s openworked gears, wheels and bridges.
Within the undulating bezel, which Greubel Forsey first presented in 2019, we see the watch’s gear train in all its multi-level, highly finished splendor just below a semicircular black-treated titanium bridge. The skeletal hour and minute hands are set atop the gilded, stacked gear train, rotating well above the small seconds display. The seconds remain quite visible despite the display’s location deep within the movement.
Flanking each corner are the watch’s namesake two balance wheels, each inclined at 30° and separated by a constant spherical differential that ‘calculates’ their average timing rate.
The watch also gets its name from the convex profile of its 43.5 mm titanium case and bezel. The contemporary polished and brushed bezel frames the movement with undulating lines that are higher on the sides and lower at the 12 o’clock and 6 o’clock positions.
Greubel Forsey explains that it constructs each hand for this watch (and for many watches in its collection) with individual geometry, finish and color. Thus, the hour hand and the minute hand are curved and filled with SuperLuminova to complement the hour indexes.
The small seconds hand is polished and blued steel, as is the four-minute hand (set between the two balances) that shows the rotational speed of the spherical differential. Finally, the power reserve hand is polished, open-worked and tipped with red.
The Convexe collection is meant to be this high-end maker’s contemporary ‘daily wear’ collection. You’ll see none of the Greubel Forsey foundational phrases engraved on the dial or bezel within this collection. And, with 100 meters of water resistance and fully integrated lugs, the watch fits snugly on the wrist for wearing comfort rain or shine.
Greubel Forsey offers the new Double Balancier Convexe on either a textured rubber strap or titanium bracelet. The manufacturer will make twenty-two per year between 2022 and 2024 for a total of sixty-six pieces overall.
Prices: $340,000 (strap) and $385,000 (bracelet).
Specifications: Greubel Forsey Double Balancier Convexe
Movement: Hand-wound movement with two patents and high-end, hand-applied finishes throughout. These include frosted, polished beveling and countersinks, black treatment, multi-level, open-worked center bridge, black treatment, polished beveling and countersinks. Also, flat black polished steel differential bridge, gold plate with engraved limitation number, circular-grained, polished beveling and countersinks, straight-grained flanks, escapement platform inclined at a 30° angle, open-worked steel balance wheel bridges. Displays: hours and minutes, small seconds, 4-minutes spherical constant differential rotation, power-reserve (of 72 hours). Frequency: 21,600 vibrations/hour.
Case: 43.5mm by 13.75mm titanium with curved synthetic sapphire crystal, Three-dimensional, variable geometry-shaped bezel, hand-polished with hand-finished straight graining , raised engraving “Double Balancier” and “Greubel Forsey.” Water resistant to 100 meters.
Dial: Three-dimensional, variable geometry hour ring with engraved and lacquered minute circle, black treatment, power-reserve indicator, engraved and lacquered.
Strap: Non-animal material, rubber with texture in relief, titanium folding clasp, engraved GF logo. On demand: 3-row metal bracelet in titanium, folding clasp with integrated fine adjustment, engraved GF logo.