100% Alligator embossed Genuine Leather material for optimal durability and comfort. 316L Stainless Steel matte buckle with round tongue. Please avoid wearing this strap in the water. Compatible with most traditional watches that have 16mm, 18mm, or 19 lug width such as, Seiko watches, Orient watches, Citizen watches, Movado watches, Fossil, Samsung and more. Fit's wrist sizes 5 1/2" to 8"