Sellita SW500 B Mechanical Movement

Cam operated chronograph – two push-buttons

Hours, minutes and small second at 9 o’clock

60 seconds counter in the center

30 minutes counter at 12 o’clock

12 hours counter at 6 o’clock

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