Hamilton H64455133 Khaki Field King Auto Men's Sapphire Glass Men's WatchCore Features of the Khaki Field King Automatic Collection: All models within this sub collection feature an automatic Swiss movement. The calibre of these models is Hamiltons H 40. The three models within this sub collection come with an 80 hour power reserve. The case width of the models within this sub collection is 40mm. Protecting the dial is scratch resistant sapphire glass. Water resistant up to 50m (5 bar). These models come with specifically