An Optional velcro strap in black or grey was provided – these straps attached to the 1st male hyperlink of your bracelet. The good thing is, The material strap from the IW3715-36 along with the alternate rubber strap in the IW3548 suit the Aquatimer! In the event the Rolex Submariner https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/