Movement: Automatic caliber BALL RRM7309-C - Chronometer certified COSC - 80 Hours Power Reserve, 28,800vph Case: 40mm x 13.4mm - 904L Stainless Steel - Anti-Reflective Sapphire Crystal - Screwed-In Crown - Solid caseback. Dial: Grey Dial - 31 Micro Gas Tubes On Hour, Minute, Second, Hands And Dial For Night Reading Capability - Indexed Hour Markers - Date At 3 o'clock.Strap: 20mm Lug Width - Stainless Steel Bracelet - Patented Folding Buckle. Feature: Water-Resistant 100M 10ATM - Hours, Minutes Central Seconds And Date. Comes With The Official Packaging and 2 Year Manufacturers Warranty