
1. Manual winding
2. Date setting
3. Time setting
Self-winding - monopusher chronograph - date
Cam operated chronograph - single push-button at 2 o'clock
Hours and minutes
60 seconds counter in the center
30 minutes counter at 12 o'clock
Optional: 15 minutes counter at 12 o'clock (SW501 MP a)
Date with quick setting
Self-winding mechanism with ball bearing
Stop second device
28'800 vibrations per hour (4 Hz)
25 jewels
Typical power reserve: 62 hours
