An Optional velcro strap in black or grey was made available – these straps attached to the first male connection with the bracelet. Luckily for us, the fabric strap in the IW3715-36 as well as alternate rubber strap within the IW3548 in shape the Aquatimer! But it is apparently the https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/