The original soldier’s watch is sportier than ever with a comfortable stainless steel bracelet. Powered by our exclusive H-50 handwinding movement, our latest Khaki Field Mechanical style won’t let you down. Rugged and reliable, this 38mm field watch is ready for an adventure.ORIGINAL FIELD WATCHThe Khaki Field Mechanical is a faithful recreation of its original 1960s forebear and is true to Hamilton's military heritage.MILITARY PRECISIONKeep track of time with our exclusively developed H-50 hand-wound movement with 80 hours power reserve. A FAITHFUL COMPANIONInspired by the military, built to last, this is the original soldier's watch.MANUAL WINDINGWind your mechanical watch by turning the crown clockwise until it blocks.STAINLESS STEEL CASEA 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 CRYSTALSynthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.H-50 CALIBERAn exclusive caliber specifically developed for our handwinding watches, the H-50 has an extended power reserve of up to 80 hours.WATER RESISTANCEYour timepiece is resistant up to 5 bar (50m) / 75 psi (164 ft).