This 2009 45.5mm. Omega Planet Ocean is an GREAT deal at this price. The Omega caliber 8500 Omega coaxial movement is accurate. The entire watch looks extremely clean with only a barely noticeable mark on the bezel near 1:00. Sapphire crystal, original rubber Omega band and signed buckle…helium escape valve….amazing black dial. The local owner we purchased this from could not find the box and papers. Grab this fast!