Omega Seamaster Chronograph Mens Watch 2598.80.00 Box Papers. Officially certified chronometer automatic self-winding movement. Chronograph function. Brushed and polished stainless steel case 41.5 mm in diameter. Omega logo on a crown. Unidirectional rotating ratcheted bezel, 0-60 elapsed time. Scratch resistant sapphire crystal. Blue wave decor dial with luminous skeleton hands and hour markers. Date window at 3 o'clock aperture. Brushed and polished stainless steel bracelet. Double folding clasp. Fits 8 1/4" wrist.