Hamilton caliber H-21

Brand:Hamilton
Reference:H-21
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
Hamilton caliber H-21

H-21 description

The Hamilton H-21 is based on the Valjoux 7750. The H-31 is similar though based on the 7753. These movements most notable change compared to the standard version is the 60 hour power reserve.

The following elements have been modified:

- The entire kinematic chain has been refined, from the barrel to the escapement
- The escapement regulator has been suppressed, facilitating optimal reliability and precision
- The main spring has been improved to increase a typical power reserve of 60 hours.

All watches using the Hamilton H-21 movement:

Hamilton Khaki Aviation X-Wind (H77616133)

H77616133 Hamilton Khaki Aviation X-Wind
Hamilton Khaki Aviation X-Wind (H77626153)

H77626153 Hamilton Khaki Aviation X-Wind
Hamilton Khaki Aviation X-Wind Black (H77616333)

H77616333 Hamilton Khaki Aviation X-Wind Black
Hamilton Khaki Aviation X-Wind Automatic Black-Orange / Leather (H77646733)

H77646733 Hamilton Khaki Aviation X-Wind Automatic Black-Orange / Leather
Hamilton Khaki Aviation X-Wind Black (H77616533)

H77616533 Hamilton Khaki Aviation X-Wind Black
Hamilton Khaki Aviation X-Wind Auto Chrono Red / Carbon (H77696793)

H77696793 Hamilton Khaki Aviation X-Wind Auto Chrono Red / Carbon
Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial Bracelet (H32616133)

H32616133 Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial Bracelet
Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial (H32616533)

H32616533 Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial
Hamilton Jazzmaster Automatic Chronograph 42mm White Dial Bracelet (H32616153)

H32616153 Hamilton Jazzmaster Automatic Chronograph 42mm White Dial Bracelet
Hamilton Jazzmaster Automatic Chronograph 42mm White Dial (H32616553)

H32616553 Hamilton Jazzmaster Automatic Chronograph 42mm White Dial
Hamilton Khaki Aviation X-Mach (H76626535)

H76626535 Hamilton Khaki Aviation X-Mach
Hamilton Khaki Aviation X-Mach (H76626135)

H76626135 Hamilton Khaki Aviation X-Mach
Hamilton Khaki Aviation X-Mach (H76686335)

H76686335 Hamilton Khaki Aviation X-Mach
Hamilton Khaki Aviation X-Mach (H76686735)

H76686735 Hamilton Khaki Aviation X-Mach
Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial Bracelet (H32576135)

H32576135 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial Bracelet
Hamilton Jazzmaster Maestro Automatic Chronograph 41mm White Dial (H32576515)

H32576515 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm White Dial
Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial (H32576735)

H32576735 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial
Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial Bracelet (H32596131)

H32596131 Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial Bracelet
Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial (H32596731)

H32596731 Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial
Hamilton Jazzmaster Automatic Chronograph 42mm Silver Dial Bracelet (H32596151)

H32596151 Hamilton Jazzmaster Automatic Chronograph 42mm Silver Dial Bracelet
Hamilton Jazzmaster Chronograph Automatic 42mm Silver Dial (H32596751)

H32596751 Hamilton Jazzmaster Chronograph Automatic 42mm Silver Dial
Hamilton Jazzmaster Automatic Chronograph 42mm Silver Dial / Gold Indexen (H32596551)

H32596551 Hamilton Jazzmaster Automatic Chronograph 42mm Silver Dial / Gold Indexen
Hamilton Jazzmaster Automatic Chronograph 42mm Blue Dial Bracelet (H32596141)

H32596141 Hamilton Jazzmaster Automatic Chronograph 42mm Blue Dial Bracelet
Hamilton Jazzmaster Automatic Chronograph 42mm Blue Dial (H32596741)

H32596741 Hamilton Jazzmaster Automatic Chronograph 42mm Blue Dial
Hamilton Khaki Aviation X-Wind Automatic Silver / Rubber (H77726351)

H77726351 Hamilton Khaki Aviation X-Wind Automatic Silver / Rubber
Hamilton Railroad Auto Chrono (H40656131)

H40656131 Hamilton Railroad Auto Chrono
Hamilton Railroad Auto Chrono (H40656181)

H40656181 Hamilton Railroad Auto Chrono
Hamilton Railroad Auto Chrono (H40656731)

H40656731 Hamilton Railroad Auto Chrono
Hamilton Railroad Auto Chrono (H40656781)

H40656781 Hamilton Railroad Auto Chrono
Hamilton Spirity of Liberty Chronograph Automatic Gold (H32416581)

H32416581 Hamilton Spirity of Liberty Chronograph Automatic Gold
Hamilton Spirity of Liberty Chronograph Automatic (H32416781)

H32416781 Hamilton Spirity of Liberty Chronograph Automatic
Hamilton Spirit of Liberty Chronograph Automatic Bracelet (H32416981)

H32416981 Hamilton Spirit of Liberty Chronograph Automatic Bracelet
Hamilton Spirity of Liberty Chronograph Automatic Gold Bracelet (H32416181)

H32416181 Hamilton Spirity of Liberty Chronograph Automatic Gold Bracelet
Hamilton Broadway Automatic Chronograph Steel / Grey / Bracelet (H43516131)

H43516131 Hamilton Broadway Automatic Chronograph Steel / Grey / Bracelet
Hamilton Broadway Automatic Chronograph Steel / Grey (H43516731)

H43516731 Hamilton Broadway Automatic Chronograph Steel / Grey
Hamilton Khaki Field Automatic Chronograph PVD / Black (H71626735)

H71626735 Hamilton Khaki Field Automatic Chronograph PVD / Black
Hamilton Khaki Field Automatic Chronograph Steel / Black (H71616535)

H71616535 Hamilton Khaki Field Automatic Chronograph Steel / Black
Hamilton Khaki Aviation X-Wind Automatic Silver / Bracelet (H77726151)

H77726151 Hamilton Khaki Aviation X-Wind Automatic Silver / Bracelet
Hamilton Khaki Aviation X-Wind Auto Chrono PVD (H77736733)

H77736733 Hamilton Khaki Aviation X-Wind Auto Chrono PVD
Hamilton Khaki Field Auto Chrono (H71706830)

H71706830 Hamilton Khaki Field Auto Chrono