Hamilton H77825331 Khaki Navy Frogman Auto 46mm
With an intrepid new look, the Khaki Navy Frogman Automatic is Hamilton’s most technically capable maritime-ready watch. Engineered for accuracy, legibility and endurance, the precision instrument brings the unfathomable power of the ocean to the wrist with a uniquely shaped crown protector and wave-look tactical rubber strap.
BEHIND THE BREATHFor freediver Pierre Frolla, every fear is an opportunity and every challenge is a new goal.
A HERO UNDERWATER AND ON LAND
A hero of the deep, its intrepid new design brings the unfathomable power of the ocean to the wrist.
SELF-WINDING
Wrist movements cause the inner rotor to swing, transferring energy to the mainspring, and powering your timepiece.
STAINLESS STEEL CASE
A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion.
SAPPHIRE CRYSTAL
Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.
Your timepiece is resistant up to 30 bar (300m) / 435 psi (934 ft).
NIVACHRON™ BALANCE SPRING
Nivachron™ is an alloy used to produce balance spring to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks.
H-10 CALIBER
A three-hand automatic movement boasting a superior power reserve of 80 hours and featuring a Nivachron™ balance spring.
