Hi everyone, new member here! I just found this old watch that belonged to my grandfather and I wanted to know if you could help me identify the era/model. I haven't been able to take it to a watchmaker yet to have the back opened to check the serial numbers. Based on other folks I've asked, I've gotten a guess of maybe 1940s or early 1950s, but I'm not even sure if the watch is mechanical or automatic. It's a 31mm watch with 16mm lug width and about 9mm thickness including the domed crystal. I'd like to know if it's worth restoring, what should and should not be restored, and what would be a fair price for the restoration. Thank you very much for your help!!