Hamilton Watch Company Model 21 Two-day Marine Chronometer, Lancaster, Pennsylvania, No. 2022, c. 1941, 4-in. silvered Arabic numeral dial marked Hamilton Lancaster, PA., U.S.A. , No. 2022 , 1941 , full plate nickel damascened movement marked Hamilton Watch Co. , Lancaster, Penn. , Model 21, 14 Jewels , chain fusee with maintaining power, uncut steel balance, helical hairspring, spring detent escapement and balance brake lock, fully gimbaled brass bowl with screw bezel, in a three-tier bass bound-box with carrying handles and maker's and serial number plates, all in a lined transportation box, wd. 12 3/4 in.