Omega Speedmaster Reduced 3510.50.00 Men's Watch. 39mm Stainless Steel case with a tachymeter bezel. Black dial with luminous hands and index hour markers. Three chronograph subdials with a small seconds subdial, 30 minutes and 12 hours. Stainless steel jubilee bracelet with a fold-over clasp. Will fit up to a 6-inch wrist. Automatic self-winding movement. Acrylic plastic, solid case back. This watch is backed by our two year warranty.