Citizen 41 Series Instruction Manual page 37

Specifications
Model
Number of jewels
Type
Timekeeping accuracy
Display functions
Duration
Beats
Additional functions
36
90**
24
Automatic mechanical watch
−10 seconds to +30 seconds per day in average
Time: hours, minutes, seconds/Calendar: date
More than about 42 hours
28,800 times per hour (8 beats)
• Automatic winding
• Manual winding
• Quick date-indication adjustment
• Second hand stop function