An Optional velcro strap in black or grey was presented – these straps hooked up to the 1st male hyperlink from the bracelet. The good thing is, the fabric strap with the IW3715-36 and the alternate rubber strap within the IW3548 healthy the Aquatimer! Christie’s This was mainly a ref. https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/