Case Crystal | Sapphire | Case Size | 41mm | Case Back | open | Case Material | stainless steel | Crown | screw down | Bezel | Unidirectional rotating black ceramic bezel | Water Resistance | 300m | Case Shape | Round | | Movement Movement Type | Automatic | Movement | automatic winding in both directions., Free sprung-balance with silicon balance spring, Omega caliber 8400 Self-winding movement with Co-Axial escapement. Resistant to magnetic fields greater than 15, two barrels mounted in series | Power Reserve | 60 Hour | | General Bracelet/Strap | stainless steel | Collection | Seamaster | Brand | Omega | Warranty | 5 Year Manufacturer's Warranty | |