An Optional velcro strap in black or gray was provided – these straps connected to the first male website link with the bracelet. The good news is, The material strap through the IW3715-36 and the alternate rubber strap from the IW3548 match the Aquatimer! “Swiss Made” over the dial of https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/