Description B Uhr 20 mm Custom Strap WWII No 491 Custom made from brown Calf Leather 20 mm B - UHR Strap by Jürgens Hand Made in Germany, wear length 180-270 mm The original WWII German Luftwaffe design, This straps are created in the 30s for the German air force for German Pilot / Observer and Navigator watch in B Uhr size & design. The strap will come with a set of 4 brass rivets to fix it on the fixed bars on your watch We ship well packed in a registered airmail bubble envelope