This is perfect. Having checked that my Swatch was a 17mm first (having read other reviews where people have complained that their strap did not fit), I expected it to fit perfectly. It did, and it now looks like the watch is new. In fact it looks a bit better than the original leather strap, yet is looks genuine and not like a later addition'! It was a little difficult to fit (5 minutes)and needed a very small screwdriver and a pointy-nosed pliers. However. very professional final look and much cheaper than going to a shop.