An Optional velcro strap in black or gray was presented – these straps hooked up to the initial male hyperlink with the bracelet. Luckily, the fabric strap through the IW3715-36 as well as alternate rubber strap in the IW3548 fit the Aquatimer! Rolex would make about 1M watches a calendar https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/