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

H-21 Si description

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

All watches using the Hamilton H-21 Si movement:

Hamilton Khaki Aviation X Wind Day Date Auto Chrono / Bracelet (H77796135)

H77796135 Hamilton Khaki Aviation X Wind Day Date Auto Chrono / Bracelet
Hamilton Khaki Aviation X Wind Day Date Auto Chrono (H77796535)

H77796535 Hamilton Khaki Aviation X Wind Day Date Auto Chrono
Hamilton Khaki Aviation Converter Air Zermatt Limited Edition (H76706730)

H76706730 Hamilton Khaki Aviation Converter Air Zermatt Limited Edition
Hamilton Khaki Aviation X Wind Day Date Auto Chrono Green Camouflage (H77916920)

H77916920 Hamilton Khaki Aviation X Wind Day Date Auto Chrono Green Camouflage
Hamilton Khaki Aviation X Wind Day Date Auto Chrono Blue / Canvas (H77906940)

H77906940 Hamilton Khaki Aviation X Wind Day Date Auto Chrono Blue / Canvas
Hamilton Khaki Aviation Converter Auto Chrono PVD / Rose Gold / Black (H76736730)

H76736730 Hamilton Khaki Aviation Converter Auto Chrono PVD / Rose Gold / Black
Hamilton Khaki Aviation Converter Auto Chrono Stainless Steel / Black / Bracelet (H76726130)

H76726130 Hamilton Khaki Aviation Converter Auto Chrono Stainless Steel / Black / Bracelet
Hamilton Khaki Aviation Converter Auto Chrono Stainless Steel / Black (H76726530)

H76726530 Hamilton Khaki Aviation Converter Auto Chrono Stainless Steel / Black