Complications QP Balancier

Specifications

About this reference

A perpetual calendar built around Greubel Forsey's seventh invention — the Mechanical Computer. Overview: Collection: Complications; Model: QP Balancier; Functions: Bidirectional perpetual calendar, day, date, month, calendar year and leap year, day/night, equation of time with month, season, solstice and equinox, function selector, Tourbillon 24 Secondes, hours and minutes, small seconds, power reserve.. Specifications: Case material: White gold; Case diameter: 45.10 mm; Case height: 14.75 mm; Water resistance: 3 atm - 30 m - 100 ft; Frequency: 21,600 vibrations/hour; Power reserve: 72 hours; Limitation: 22 timepieces. Description: At the centre of the QP Balancier lies Greubel Forsey's seventh invention: the Mechanical Computer. A system of coaxially stacked coding wheels with removable, programmable fingers, it reinterprets the calendar logic of historic astronomical clocks within a wristwatch movement. The result is a perpetual calendar of unusual mechanical intelligence.; The dial carries: leap year, day/night indication, day of the week, large date, month, hours, minutes, seconds, and a 72-hour power reserve. On the movement side: equation of time, months, seasons, solstices, equinoxes, and the calendar year. The volume of information is exceptional; the legibility is deliberate.; Despite its mechanical complexity, the QP Balancier is set and adjusted with a single crown — in both directions, without risk of damage to the mechanism. The system was designed from the outset so that complexity in construction would never translate into difficulty in use..