Caliber CH 27-70 Q

Manual Winding movements

DESCRIPTION

Manual Winding movements

As the name implies, these movements are wound by turning the crown. The tensioned mainspring drives the wheels inside the watch as it gradually relaxes. Whether ultra thin, cut-away “skeleton”, simple or complicated, the manually wound movement is greatly appreciated by aficionados of traditional watchmaking.

Technical data

• Chronograph function: center chronograph hand, 30-minute counter
• Perpetual calendar: date and leap year by hands, day and month in apertures
• Moon phases and am/pm indicator
• Seconds subdial
• Overall diameter: 30 mm
• Height: 7.2 mm
• 24 jewels, 9 bridges
• Balance: Gyromax
• Vibrations per hour: 18'000
• Power reserve: 60 h max
• Balance spring: Breguet
• Number of parts: 353