Omega Seamaster Aqua Terra 42mm Blue Dial Steel Mens Watch 2502.80.00. Automatic self-winding movement. Stainless steel round case 42.2 mm in diameter. Excibition sapphire crystal case back. Fixed stainless steel bezel. Scratch resistant sapphire crystal. Blue dial with applied index hour markers. Date calendar window at 3 o'clock aperture . Stainless steel bracelet with push button deployent clasp. Fits 7 1/4" wrist.