
1. Manual winding
2. Date and GMT setting
3. Time setting
Manual winding - chronograph - date - 2nd time zone
Cam operated chronograph - two push-buttons
Hours, minutes and small second at 6 o'clock
60 seconds counter in the center
30 minutes counter at 12 o'clock
Optional: 15 minutes counter at 12 o'clock (SW537 M)
2nd time zone / 24 h GMT in the center
Date and GMT with quick setting
Manual winding
Stop second device
28'800 vibrations per hour (4 Hz)
25 jewels
Typical power reserve: 63 hours
