Rose gold case with a leather-crocodile strap. Rose gold rose-gold bezel. Black dial with silver-tone hands. Dial Type: Analog. Date display subdial at the 3 o'clock position, day of the week at 9 o'clock, month and leap-year indications at 12 o'clock. Corum Calibre CO 183 automatic movement with a 55-hour power reserve. Scratch resistant antireflective-sapphire crystal. Transparent case back. Case size: 41mm, case thickness: 13 mm. Band width: 21 mm, band length: 8 inches. Buckle clasp. Water resistant at 30 meters / 100 feet. Functions: perpetual calendar, moon phase, leap year, month, date, day, hour, minute. Luxury watch style. Watch label: Swiss Made. Item Variations: 18351055 0001BN, 18351055-0001BN, 18351055/0001BN, 183510550001BN. Corum Romulus Perpetual Automatic Black Dial Men's Watch 183.510.55/0001 BN.