Omega Seamaster Planet Ocean Co-Axial GMT (188.8.131.52.01.001). Caliber Omega 8906 automatic co-axial Master Chronometer GMT movement with central seconds and hand. Date window at 3 o`clock position. White ceramic dial with Roman numerals and index hour makers. Black and white ceramic rotating bezel stamped with Arabic numerals to separate night and day. Stainless steel 43.5mm case. Sapphire crystal on top and exhibition case back. Helium-escape valve at 10 o`clock position. Sapphire crystal on top and exhibition case back. Water resistant to 600M. Stainless steel bracelet.