HAMILTON Lancaster U.S. Navy ship′s chronometer model 21 with fabrication-no. 2E5878 in wooden box, USA II-WW, cardanic suspended brass kettle, silvered dial with power reserve indicator display, black Arabic numerals, black spade hands, fabrication-no., year & second at 6, rhodium plated movement, 14 jewels with balance stop lock, powered by chain & fusee, detent escapement with feather, screw-balance with 4 timing screws, free- sprung cylindric palladium hairspring, measures approx. 18,7 x 19,5 x 19,5 cm, description for repair & setting, key as well as repair container for kettle/movement enclosed, signs of use, otherwise condition 2, property of a collector