An Optional velcro strap in black or grey was made available – these straps attached to the primary male connection from the bracelet. Luckily, the fabric strap from the IW3715-36 along with the alternate rubber strap from your IW3548 healthy the Aquatimer! “Swiss Produced” over the dial from the watch https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/