Description 20 mm vintage Strap from the 40s No 539 dark brown calf leather Strap, used but still great and with great patina, 20/20 mm, 190 mm long, 2.8 mm thick, open ends with ss clips, nice steel Buckle, No loops,a great vintage high quality strap to match your vintage Watch. A real piece of History because this straps comes from a german WWII Tutima Chrono from my own Collection!