Family: 31-26031 jewels38h / 48h power reserve11,520 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.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
31 jewels
Power Reserve
38h / 48h
Frequency
11,520 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
2017CALIBER FAMILY
31-260ALSO KNOWN AS
cal. 31-260 reg qa