Inspired by a rare 1957 U.S. Navy prototype, the Special Edition MIL-SHIPS Bronze celebrates Bulovas 150th Anniversary and military heritage. The sandblasted CuSn8 bronze case develops a rich patina over time. Features include an army green dial, matching bezel, vintage-style hands with Super-LumiNova, a moisture indicator, and double-domed sapphire crystal with anti-reflective coating. Powered by a 21-jewel automatic movement with a 42-hour reserve and finished with a commemorative case backan essential for collectors. Powered by the automatic movement with 21 jewels and a power reserve of up to 42 hours.Presented on a green rubber strap with traditional buckle.Scratch resistant sapphire crystal glass.41mm case width.200 metre water resistance.