An Optional velcro strap in black or grey was made available – these straps connected to the very first male hyperlink of the bracelet. The good news is, the fabric strap in the IW3715-36 plus the alternate rubber strap within the IW3548 match the Aquatimer! Sited on the former Chapel https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/