Distinctive, daring and definitely an attention-grabber, the Chrono-Matic 50 is based on the Chrono-Matic E and limited to 1,972 pieces. Powered by the H-31 automatic movement, at 48 mm, it’s not for the faint hearted. The reverse panda dial is a signature Hamilton style statement. Bold red color accents underscore the dynamism of this multifunctional timekeeper which includes a countdown scale.
- Caliber H-31
- Collection American Classic
- Movement Automatic
- Watch Function Chronograph, Date, Tachymeter
- Case size 48mm x 52mm
- Thickness (mm) 16.05
- Dial color Black
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm
- Power reserve 60 hour
- Status status_current_collection
- Water Resistance 10 bar (100m)/145 psi (328ft)
- Anti Reflection Yes
- Nivachron Yes
- Strap reference H6005161001
- Strap type Calf leather
- Buckle type Pin buckle
- Buckle width 20mm
H-31
The H-31 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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