An Optional velcro strap in black or grey was made available – these straps connected to the first male connection in the bracelet. Thankfully, the fabric strap in the IW3715-36 as well as alternate rubber strap through the IW3548 match the Aquatimer! The 2020 Rolex Submariner wristwatch established the net https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/