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Greubel Forsey proudly unveils the QP Balancier, a revolutionary interpretation of the perpetual calendar that merges intuitive functionality with uncompromising chronometric performance. Limited to just 22 pieces in white gold, this timepiece represents a new pinnacle in haute horlogerie.
At the heart of the QP Balancier lies Greubel Forsey’s patented Mechanical Computer, a 25-part mechanical brain that “understands” the rules of the Gregorian calendar. This innovation allows the watch to adjust instantly in either direction, restart flawlessly after months unwound, and remain programmed until February 28, 2100—all without the need for pushers or complex crown positions.
The QP Balancier integrates 12 indications—including hours, minutes, seconds, power reserve, day, date, month, leap year, day/night, 24-hour display, calendar year, and a patented function selector—into a single crown interface. This makes it the most user-friendly perpetual calendar ever created, eliminating the need for manuals or reset tools.
Aesthetically, the watch is a study in purity and harmony. Its multi-level gold dial presents calendar information in a clear, linear format, flanked by leap year and day/night indicators. The tactile feedback during quick-correction mode offers a unique sensory connection between wearer and mechanism.
Housed in a 45.1 mm white gold case, the QP Balancier features Greubel Forsey’s signature 30° inclined balance wheel, a high-mass, variable-inertia system with gold mean-time screws. The movement comprises 612 hand-finished components, including twin fast-rotating barrels that deliver a 72-hour chronometric power reserve.
With the QP Balancier, Greubel Forsey has not only redefined the perpetual calendar—it has perfected it.
Dimensions | Diameter: 40.80 mm Thickness: 10.40mm |
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Number of Parts | Movement: 612 Escapement platform: 59 |
Jewels | - 78 - Olived-domed jewels set in gold chatons |
Chronometric Power Reserve | 72 hours |
Barrels | Two coaxial, series-coupled fast-rotating barrels (1 turn in 3.2 hours) One barrel equipped with a slipping spring to avoid excess tension |
Balance Wheel | - In-house variable-inertia - 6 gold mean-time screws - Diameter: 12.60 mm - Inclined at 30° |
Frequency | 21,600 vibrations/hour |
Balance Spring | - Phillips terminal curve - Geneva-style stud |
Bridges and Main Plates | - Nickel silver, frosted and spotted - Polished bevelling and countersinks - Straight-grained flanks - Nickel-palladium and anthracite treatments - Three engraved gold plates (one with limitation number) - Synthetic sapphire mechanical computer and calendar year bridges |
Escapement Platform | - Inclined at 30° - Flat black polished steel - Polished steel pillars - Barrel-polished balance wheel bridge |
Gearing | - Involute circle profile - Inclined gear with profiled teeth on fourth wheel |
Displays | - Hours and minutes - Small seconds on disc - Power reserve (72 hours) on a sector - Day of the week - Large date - Month - Leap year - Day-and-night indicator (with red safety zone) - Function selector (QP calendar or HM time adjustment) - Calendar year (on back display) |
Case | - White gold - High domed synthetic sapphire crystal(front and back) |
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Case Dimensions | - Caseband diameter: 44.70mm - Bezel diameter: 45.10mm - Case height: 10.55mm - Height on synthetic sapphire crystals: 14.75mm |
Water Resistance | - Water-resistant 3atm - 30m - 100ft (standard NIHS 92-20/SN ISO 22810:2010) |
Crown | - White gold - Engraved GF logo |
Dial | - Multi-level in gold, anthracite color - Perpetual calendar aperture with polished raised engraving - Indicators (leap year, day/night, small seconds, power reserve, function selector) in goldIndicators (leap year, day/night, small seconds, power reserve, function selector) in gold - Circular-grained and straight-grained flanks with polished bevels |
Hands | - Hours and minutes: Polished steel with Super-LumiNova - Power reserve and leap year: Polished steel, hand-polished countersink, flat black polished head |
Strap and Clasp | - Hand-sewn textured rubber - White gold folding clasp, hand-engraved with GF logo |