Marine Chronometer Hamilton Winding Key -- Elgin, Mercer, U. Nardin buckle and movement as the larger

and movement as the larger Marathon diver’s watches in a compact package

the Marathon Navigator Date Watch with Tritium is designed for pilots

Lum-Tec provides free lifetime pressure testing and seal cleaning plus two year limited warranty

It will run for approximately 60 hours on a single winding

the Lum-Tec Combat Field X6 GMT Watch captures a sleek and stylish military aesthetic with its titanium carbide-coated casing and 22mm nylon strap

Marine Chronometer Hamilton Winding Key -- Elgin, Mercer, U. Nardin buckle and movement as the largerNew old stock WWII era Hamilton Marine Chronometer Winding Key suitable for use with Hamilton, Elgin, Mercer & U. Nardin marine chronometers. This NOS Marine Chronometer Winding Key came from a now closed chronometer shop in New York City and was manufactured in the early 1940s for the Hamilton model 21 and Elgin model 600 Marine Chronometers. These chronometers were manufactured as part of the war effort for the United States Navy. The winding key is