Omega Professional 2531.80 Men's Watch. 41mm Stainless Steel case. Stainless Steel Unidirectional bezel. Blue dial with Luminous Steel hands and dot hour markers. Minute markers on the outer dial. Date display at the 3 o'clock position. Stainless Steel Bracelet with Fold Over Clasp With Double Push-Button Safety. Will fit up to a 7-inch wrist. Sapphire Crystal, Stainless steel case back. Calibre 1120 Automatic self-winding chronometer movement with a 44-hour power reserve. This watch is backed by our two year warranty.