Automatic chronometer movement, Swiss Made. Silver-tone stainless steel case with black rubber strap and screw-down bezel (bi-directional rotating). Black dial features analog time display, silver-tone hands, luminous hour markers, minute/second markers at outer rim, date function visible through a sapphire crystal. Sapphire crystal lens is scratch resistant. Luminescent for night readability. Breitling Calibre 17 movement based on ETA 2824-2 with 25 jewels; operates at 28,800 vph (bitting) and has ~42 hours power reserve. Water resistant to 300 meters (approx. 1000 feet). Functions: Date, Hour, Minute, Second, Chronometer.