This nice honeycomb cal. 283Purchases made through these links may earn this site a commission from the eBay Partner Network has a serial no. 11..... pointing to 1947. But at that time, reference no.'s were in 4-digit format. Do you have a guess on the most likely explanation: Is it a total franken with drawer parts put together or Is it merely an original watch with a newer caseback?
According to the OVD, that reference should have a cal 286. I suspect the movt./dial has been recased.