Hamilton caliber H-21 Si

Brand:Hamilton
Reference:H-21 Si
Base: ETA 7750
Movement:Automatic
Display:Analog
Diameter:30.00
Jewels:25
Reserve:60
Frequency:28800
Date:Date, Day
Chronograph:Chronograph
Hands:Hours, Minutes, Small Seconds
Additionals:Chronometer

Description

Variation of Hamilton's H-21 self-winding chronograph movement, here with silicon balance spring.

All watches using this caliber: