Perpetual calendar watches
The perpetual calendar presents a mechanical solution for an astronomical problem. Gears, springs and rockers mimic the rotation of the earth around the sun. The mechanism automatically knows whether the month has 28, 30 or 31 days, as well as calculating leap years. The perpetual calendar only needs correcting at the turn of each century, unless the century is divisible by four hundred.
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Patrimony perpetual calendar ultra-thin Patrimony perpetual calendar ultra-thin41 mm , Pink Gold -
Patrimony perpetual calendar ultra-thin Patrimony perpetual calendar ultra-thin41 mm , Pink Gold -
Overseas perpetual calendar ultra-thin skeleton Overseas perpetual calendar ultra-thin skeleton Boutique Exclusive41.5 mm , Pink Gold -
Overseas perpetual calendar ultra-thin skeleton Overseas perpetual calendar ultra-thin skeleton Boutique Exclusive41.5 mm , White Gold -
Overseas perpetual calendar ultra-thin skeleton Overseas perpetual calendar ultra-thin skeleton Boutique Exclusive41.5 mm , Pink Gold -
Overseas perpetual calendar ultra-thin Overseas perpetual calendar ultra-thin Boutique Exclusive41.5 mm , White Gold -
Traditionnelle perpetual calendar ultra-thin Traditionnelle perpetual calendar ultra-thin36.5 mm , White Gold -
Overseas perpetual calendar ultra-thin Overseas perpetual calendar ultra-thin Boutique Exclusive41.5 mm , Pink Gold -
Overseas perpetual calendar ultra-thin Overseas perpetual calendar ultra-thin41.5 mm , Pink Gold -
Overseas perpetual calendar ultra-thin Overseas perpetual calendar ultra-thin41.5 mm , Pink Gold -
Traditionnelle perpetual calendar chronograph Traditionnelle perpetual calendar chronograph Boutique Exclusive43 mm -
Traditionnelle perpetual calendar ultra-thin Traditionnelle perpetual calendar ultra-thin36.5 mm , Pink Gold -
Traditionnelle Twin Beat perpetual calendar Traditionnelle Twin Beat perpetual calendar Boutique Exclusive42 MM