Automatic mechanical, exclusive Panerai OP III calibre, 13¼ lignes, 21 jewels, PANERAI personalised oscillating weight. Glucydur® balance, 28,800 alternations/hour. Incabloc® anti-shock device. Power reserve 42 hours. Côtes de Genève decoration on the bridges. It is tested and certified by C.O.S.C. FUNCTIONS: Hours, minutes, small seconds, date. CASE: Diameter 44 mm, AISI 316L polished steel. BEZEL: Polished steel. BACK: Screw, steel. DIAL: Black with luminous Arabic numerals and hour markers. Date at 3 o’clock, seconds at 9 o clock. CRYSTAL: Sapphire, formed of corundum, 3.5 mm thick, magnifying lens over the date at 3 o’clock. Anti-reflective coating. WATER-RESISTANCE: 30 bar (~300 metres). STRAP: PANERAI personalised alligator strap and steel adjustable clasp. Supplied with a second interchangeable strap and a steel screwdriver.