Hamilton H69459530 Khaki Field Mechanical Bronze 38mm Men's WatchCore Features of the Khaki Field Mechanical Collection: The Khaki Field Mechanical Collection is a faithful recreation of its original 1960s forebear, inspired by the Military. All the watches in this collection are powered by Hamiltons exclusive hand wound movement. These models come with a power reserve of up to 80 hours. Calibre Hamiltons exclusive H 50. To maximise the durability of the models within this collection, the dials are protected by