Marine Chronometer Hamilton Winding Key -- Elgin, Mercer, U. Nardin buckle The Solar Marine cases are

The Solar Marine cases are made from  316L Surgical grade stainless steel

Brand: Elliot Brown

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

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

Marine Chronometer Hamilton Winding Key -- Elgin, Mercer, U. Nardin buckle The Solar Marine cases areNew 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