An Optional velcro strap in black or grey was made available – these straps attached to the initial male link in the bracelet. Fortunately, the fabric strap from the IW3715-36 as well as the alternate rubber strap through the IW3548 match the Aquatimer! Along with the remarkably corrosion-resistant 904L stainless https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/