Family: 31-26031 jewels38h power reserve23,040 vph (3.2 Hz)
Self-winding movement developed for Patek Philippe's regulator-style annual calendar, featuring a central sweep minutes hand with separate subdials for hours and small seconds. Annual calendar displays day, date, and month through apertures and requires correction only once per year at end of February.
Last updated 24 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
38h
Frequency
23,040 vph (3.2 Hz)
Diameter
33mm
Height
5.08mm
Display Type
Analog
Rotor Type
Micro Rotor
COMPLICATIONS
Annual CalendarDayDateMonth
FEATURES
Sweep SecondsHand Winding
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2011CALIBER FAMILY
31-260ALSO KNOWN AS
cal. 31-260 reg qa
FOR WATCH DEALERS
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