An Optional velcro strap in black or grey was available – these straps attached to the 1st male link with the bracelet. Luckily, the fabric strap within the IW3715-36 along with the alternate rubber strap in the IW3548 match the Aquatimer! To celebrate the Submariner’s 50th anniversary in 2003, Rolex https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/