An Optional velcro strap in black or grey was supplied – these straps hooked up to the first male backlink in the bracelet. Luckily for us, the fabric strap within the IW3715-36 as well as the alternate rubber strap through the IW3548 suit the Aquatimer! Past its superior corrosion resistance, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/