An Optional velcro strap in black or gray was offered – these straps connected to the very first male backlink with the bracelet. The good news is, The material strap from your IW3715-36 plus the alternate rubber strap from the IW3548 suit the Aquatimer! Sited on the previous Chapel Courtroom https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/