Encyclopedia · Movements

Movement & calibre database

Technical records for landmark calibres — from railroad pocket watches to tuning-fork, quartz and Spring Drive movements. Select up to four to compare. For how the parts work, see the mechanism encyclopedia.
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SpecificationPatek Philippe calibre 240
ManufacturerPatek Philippe
TypeAutomatic (micro-rotor, ultra-thin)
WindingAutomatic (off-centre 22k gold micro-rotor)
Production1977–present
CountrySwitzerland
Diameter27.5 mm
Height2.4 mm (base)
Jewels27
Frequency21,600 vph (3 Hz)
Power reservec. 48 h
ComplicationsBase for world time (240 HU), perpetual calendar (240 Q) and other versions
StatusDocumented