DETAILS 38mm matt stainless steel case, three hand display, dark dial with light, luminescent numerals, indexes showing hours and minutes, durable NATO strap: The new Khaki Field Mechanical is a faithful recreation of its original 1960s forebear and is true to Hamilton’s military heritage. Inspired by the military, built to last, this is the original soldier’s watch. MOVEMENTThe H-50 is an exclusive caliber specifically developed for our hand-winding watches. The H-50 is available with or without a date function and has an extended power reserve of up to 80 hours, ensuring maximum reliability even when it is not wound for a few days. Caliber :H-50 Case material :Stainless steel Crystal :Sapphire Movement :Mechanical Power reserve :80-hour power reserve Case size :38mm Water resistance :Water Resistance 5 bar (50 m) / 73 psi (164 ft) Top Denotation :Leather Top Species :Cow Top Tanning :Mineral Strap color :Green Lug width :20mm lug width Buckle type :Pin buckle Strap type :NATO Collection :Khaki Field Strap reference :H600.694.102