Patek Philippe 31-260 REG QA Handbuch Seite 4

MOVEMENT
• Caliber 31-260 REG QA
• Self-winding
• Annual Calendar
• Regulator-style display
• Diameter: 33 mm
• Height: 5.08 mm
• Number of parts: 313
• Number of jewels: 31
• Power reserve:
min. 38 hours – max. 48 hours
• Winding rotor:
off-center mini-rotor in 22K gold,
unidirectional winding
• Balance: Gyromax®
• Frequency:
23,040 semi-oscillations/hour (3.2 Hz)
• Balance spring: Spiromax®
• Escapement: Pulsomax® with lever
and escape wheel in Silinvar®
• Patek Philippe Seal
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DISPLAYS
Large central minute hand
Subsidiary dials:
Small hour hand
Small seconds
Apertures:
Day of the week
Date
Month
CROWN
1 Manual winding
2 Setting the time and stopping seconds
CORRECTION
PUSH PIECES
Day-of-week correction
Date correction
Month correction
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