Pendulux Marine Decorative Wall Clock, Vintage Unique Wall Clock for Outdoor and Home Decor, Gray - 13" Diameter The Marine Wall Clock is a reproduction of a 1940s French naval clock once used in submarines and surface ships. This distinctive dual-level clock dial has separate tracks for hour and minutes. The high quality quartz movement requires one AA battery. A wall clock that features a gray-painted steel case with solid brass hardware and glass cover. This clock offers a definite handsome look for industrial dcor or for collectors of nautical memorabilia.