Hadley-Roma Men's MSM824RA-180 18-mm Black Genuine Alligator Leather Watch Strap Genuine American Alligator; Water-Resistant Leather Lining Heavy Padding with Matching Colored Stitching Men's Regular Length - 115x75mm 18mm lug width with 16mm buckle width Adjust fit with Stainless Steel Hypo-Allergenic Tang style buckle