ROLEX Rolex Genuine Leather Strap Black Black Alligator Leather Strap Lug width 20mm Buckle width 16mm Unused and stored. (Only tried on) This is a very good condition strap. Just by changing the strap, the overall impression of the watch changes dramatically. By changing the material and color of the strap, the watch shows various expressions, and you can easily expand your fashion options. You can enjoy it as if you have multiple watches with one watch, and enjoy changing it to suit the occasion and your mood.