Description B Uhr 20 mm Custom Straps WWII No 489 Custom made from brown Calf Leather 20 mm B - UHR Strap by Jürgens Hand Made in Germany, already rivet for spring bar watches. 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. We ship well packed in a registered airmail bubble envelope