An Optional velcro strap in black or grey was made available – these straps attached to the main male link from the bracelet. Fortunately, the fabric strap within the IW3715-36 as well as alternate rubber strap from the IW3548 fit the Aquatimer! Nonetheless it appears to be the component now https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/