Corum Style No: L397/02976 - 397.100.55/0001 BG01 Corum Bubble Tourbillon GMT Watch

47 mm 5N 18K rose gold case, 21.00 mm thick, sapphire back, domed sapphire crystal crystal with antireflective treatment, grey openworked dial, caliber CO 397 automatic movement with hours, minutes, date, 2nd time zone, day/night indicator, and tourbillon, approximately 50 hour of power reserve, black alligator leather strap with black alzavel calfskin lining, pin buckle. Water resistant to 30 m. (Old reference 397.100.55/0001 BG01).