My father gave me this watch, he is 85 now, he ware this watch daily for 40+Years. I try to find out same model but never saw it, only in Thailand web side showing some data. I wear for 2 week now, very accurate, anyone can tell me the history of this watch, tks.
Do you have any photos of the watch that are in focus? If you follow the points in this link, we'll be able to better help you. https://omegaforums.net/threads/vintage-omega-posting-guide.383/
Check the last page (12 of 12) of this essay by @mondodec: http://users.tpg.com.au/mondodec/Movement4.pdf There is a brief mention of your watch there. Not sure what other "history" you are looking for. gatorcpa