Description 16 mm vintage Strap from the 50s No 550 brown Calf leather Strap, NOS condition, 16/16 mm, 185 mm long, 2.5 mm thick, open ends with clips , nice ss polished Buckle, a great vintage quality strap to match your vintage Watch. Note: Outer leather shows ist broken at the lug ends but still a nice strap for a display watch!