Case Crystal | Sapphire | Case Size | 38mm | Case Back | Closed | Case Material | stainless steel | Crown | push down | Bezel | Fixed Tachymeter black ceramic bezel | Indexes | Indexes | Water Resistance | 100m | | Movement Movement Type | Automatic | Movement | Omega 3330 Self-winding chronograph with column-wheel mechanism and Co-Axial escapement. Free sprung-balance equipped with Si14 silicon balance spring. Officially certified chronometer. | Power Reserve | 52 Hour | | General Bracelet/Strap | stainless steel | Collection | Speedmaster | Brand | Omega | Warranty | 5 Year Manufacturer's Warranty | |