Swiss quartz movement, Dress watch, Professional, Stainless steel luminous hands and markers, Curved scratch resistant sapphire crystal, Case is cut from a solid block of stainless steel, Unidirectional turning stainless steel bezel with an aluminum ring, Large Arabic numbers on bezel, Stainless steel screw-in crown fitted with a double seal, Screw-in case back with engraved diver's helmet, Diving extension system, Stainless steel bezel, crown, case & caseback, 300 meters/990 feet water resistant