Additional information
| Brand: | Hamilton |
|---|---|
| Family: | American Classic |
| Reference: | H40656731 |
| Name: | Railroad Auto Chrono |
| Limited: | No |
Case
| Material: | Stainless Steel |
|---|---|
| Glass: | Sapphire |
| Back: | Open |
| Shape: | Round |
| Diameter: | 44.00 mm |
| Height: | 15.30 mm |
| Lug Width: | 22.00 mm |
| W/R: | 50.00 m |
Dial
| Color: | Black |
|---|---|
| Indexes: | Stick / Dot |
| Hands: | Alpha |
Price in euro
Description
The Hamilton Railroad Auto Chrono is a contemporary watch that takes cues from Hamilton's rich past in supplying watches to the railways. It features a stainless steel case of 44mm, that houses the automatic caliber H-21. The dial features a spiralling tachymeter scale and time is indicated through a set of 'alpha' hands.
Movement
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.
| Type: | Automatic |
|---|---|
| Brand: | Hamilton |
| Caliber: | H-21 |
| Base: | ETA7750 |
| Display: | Analog |
| Diameter: | 30.00 mm |
| Jewels: | 25 |
| Reserve: | 60 h |
| Frequency: | 28800 bph |
| Time: | Hours, Minutes, Small Seconds |
| Date: | Date, Day |
| Chronograph: | Chronograph |
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