Blue Dial Chronograph Function Self Winding Automatic Chronometer Movement Caliber: Omega 1164 Power Reserve: 44 Hours Brushed with Polished Steel Case & Bracelet Scratch Resistant Sapphire Crystal 100 Meters / 330 Feet Water Resistant 40mm Case Deployment Buckle Luminescent Hands and Markers The Omega Men's Speedmaster Blue Dial Chronograph Watch is a uniquely designed, self-winding chronograph that features chronometer movement with rhodium-plated finish. The dial sports a blue face offset by three blue sub-dials at the 6, 9, and 12 o'clock, luminous hands and hour markers, and a calendar window at the 3 o'clock. The blue bezel sports a white engraved tachometer dial. The watch also features a stainless steel band, and a domed, scratch-resistant sapphire crystal coated on the inside with anti-reflective treatment. Designed to join you in your next water sport adventure, the Speedmaster is water resistant to 330 feet.