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