Patek Philippe CH 28-520 C/528 Handbuch Seite 5

MOVEMENT
• Caliber CH 28-520 C/528
• Self-winding
• Flyback chronograph
• Diameter: 30 mm
• Height: 6.63 mm
• Number of parts: 308
• Number of jewels: 32
• Power reserve:
Min. 45 hours – max. 55 hours
• Winding rotor:
Central rotor in 21K gold,
unidirectional winding
• Balance: Gyromax®
• Frequency:
28,800 semi-oscillations/hour (4 Hz)
• Balance spring: Spiromax®
• Patek Philippe Seal
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DISPLAYS
Hour hand
Minute hand
Chronograph hand (sweep seconds)
Subsidiary dial:
60-minute counter
Aperture:
Date
CROWN
0 Normal operation (screw-down crown)
1 Manual winding
2 Setting the time
CORRECTION PUSH PIECE
Date correction
PUSHERS
Chronograph start and stop
Chronograph reset and flyback function
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