The Railroad Auto Chrono transports you back in time to when Hamilton first made its name as a precision watchmaker, producing timepieces that helped improve safety on the early railroads. Heritage is the backdrop against which the Hamilton designers have created a versatile wear anywhere watch for the modern man. The automatic chronograph movement adds a dynamic touch and the snailed tachymeter satisfies the need for speed.
- Caliber H-21
- Collection American Classic
- Movement Automatic
- Watch Function Chronograph, Date
- Case size 44mm
- Thickness (mm) 15.3
- Dial color Silver
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm
- Power reserve 60 hour
- Status status_current_collection
- Water Resistance 5 bar (50m)/73 psi (164ft)
- Anti Reflection Yes
- Open Case Back Yes
- Strap reference H6004051011
- Strap type Calf leather
- Buckle type Folding clasp
- Buckle width 20mm
H-21
The H-21 is a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of models. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.





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