An Optional velcro strap in black or grey was offered – these straps connected to the initial male link with the bracelet. Luckily, The material strap in the IW3715-36 as well as alternate rubber strap from the IW3548 suit the Aquatimer! Together with the highly corrosion-resistant 904L chrome steel (labeled https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/