
1. Manual winding
2. Date setting
3. Time setting
Manual winding - monopusher chronograph - date
Cam operated chronograph - single push-button at 2 o'clock
Hours, minutes and small second at 9 o'clock
60 seconds counter in the center
30 minutes counter at 12 o'clock
Optional: 15 minutes counter at 12 o'clock (SW501 M MP b)
Date with quick setting
Manual winding
Stop second device
28'800 vibrations per hour (4 Hz)
21 jewels
Typical power reserve: 63 hours
