Description 18 mm Vintage Alligator Strap No 747 highest Quality , Swiss made , brown genuine Alligator Strap vintage, made in the 40s, 18/14 mm , 190 mm long, 2.5 mm thick, open ends with ss clips, with a high grade ss tang buckle, NOS Condition, a great addition to any High End Collectors or Museums Watch, great Material and workmanship ,one of the nicest Straps I have seen in decades,