The special edition dualmatic is a unique watch with storms signature revolving disc movement displaying the hours minutes and seconds the dualmatic is a dual time watch allowing you to display two different time zones at one time making it the perfect travelling partner the black strap and case are made from slate ion plated stainless steel waterproof to 50mspecificationr features special edition dual time dater movement japanese movementr case material stainless steelr case size w 46