Replica Hamilton American Classic Jazzmaster SeriesHamilton Railroad Auto Chrono (H40656181)

Brand: Hamilton Replica
Series: American Classic Jazzmaster
Model: H40656181
Dial Color: Silver
Dial Indexes: Stick / Dot
Dial Hands: Alpha
MBrand:Hamilton
Caliber:H-21
Base:ETA 7750
Display:Analog
Diameter:30.00 mm
Jewels:25
Reserve:60 h
Frequency:28800 bph
Time:Hours, Minutes, Small Seconds
Date:Date, Day
Chronograph:Chronograph
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.
- The mono-block rotor is distinctively skeletonized with an “H” shape and aviation-inspired cut-outs, a signature of individualization.
Case Material:Stainless steel
Case Glass:Sapphire
Case Back:Open
Case Shape:Round
Case Diameter:44.00 mm
Case Height:15.30 mm
Case Lug Width:22.00 mm
W/R:50.00 m
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.