An Optional velcro strap in black or grey was made available – these straps connected to the initial male url of your bracelet. Luckily, the fabric strap in the IW3715-36 as well as alternate rubber strap in the IW3548 in good shape the Aquatimer! Christie’s This was mostly a ref. https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/