IWC cal 89 manual wind watch

Year: 1940s Movement: IWC 89 Width without crown: 32 mm Lug width: 16 mm Thickness: 10 mm Lug to lug: 41 mm An almost 80-year-old IWC manual-wind watch with beautifully shaped steel case. The case shows signs of age and wear, and the crown is original. The leather strap is unworn. The service history is unknown, but the watch is working and its daily deviation is about +- 10 seconds.