Hamilton Caliber H-21 - WatchBase

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4. H-21 [Day - Date]

Hamilton caliber H-21 [Day - Date] Find on As an eBay Partner, we may be compensated if you make a purchase.

Brand:	Hamilton
Reference:	H-21 [Day - Date]
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

H-21 [Day - Date] 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 [Day - Date] movement:

H77616133 Hamilton Khaki Aviation X-Wind H77626153 Hamilton Khaki Aviation X-Wind H77616333 Hamilton Khaki Aviation X-Wind Black H77646733 Hamilton Khaki Aviation X-Wind Automatic Black-Orange / Leather H77616533 Hamilton Khaki Aviation X-Wind Stainless Steel / Black H77696793 Hamilton Khaki Aviation X-Wind Auto Chrono Red Gold / Carbon H32616533 Hamilton Jazzmaster Automatic Chronograph 42mm Black Dial H32616153 Hamilton Jazzmaster Automatic Chronograph 42mm White Dial Bracelet H32616553 Hamilton Jazzmaster Automatic Chronograph 42mm White Dial H76626535 Hamilton Khaki Aviation X-Mach H76626135 Hamilton Khaki Aviation X-Mach H76686335 Hamilton Khaki Aviation X-Mach H76686735 Hamilton Khaki Aviation X-Mach H32576135 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial Bracelet H32576515 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm White Dial H32576735 Hamilton Jazzmaster Maestro Automatic Chronograph 41mm Black Dial H32766513 Hamilton Jazzmaster Maestro Chronograph 45 Stainless Steel / White H77726351 Hamilton Khaki Aviation X-Wind Automatic Silver / Rubber H43516131 Hamilton Broadway Automatic Chronograph Steel / Grey / Bracelet H43516731 Hamilton Broadway Automatic Chronograph Steel / Grey H71626735 Hamilton Khaki Field Automatic Chronograph PVD / Black H71616535 Hamilton Khaki Field Automatic Chronograph Steel / Black H77726151 Hamilton Khaki Aviation X-Wind Automatic Silver / Bracelet H77736733 Hamilton Khaki Aviation X-Wind Auto Chrono PVD / Black H71706830 Hamilton Khaki Field Auto Chrono H32766643 Hamilton Jazzmaster Maestro Chronograph 45 Stainless Steel / Blue H32766143 Hamilton Jazzmaster Maestro Chronograph 45 Stainless Steel / Blue / Bracelet H32576141 Hamilton Jazzmaster Maestro Chronograph 41 Stainless Steel / Blue / Bracelet H32576641 Hamilton Jazzmaster Maestro Chronograph 41 Stainless Steel / Blue H77506540 Hamilton Khaki Aviation X-Wind Stainless Steel / Blue

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