Hello guys, i new here on the forum as well as in this vintage watch collecting hobby and stil have a lot to learn from all of you so please bare with me. I recently found this vintage omega with no name (pictures at the bottom). The seller seems to have a lot of positive reviews on ebay (over 12k to be exact) and stated that he serviced the watch himself. I was wondering if this watch is genuine? And before i even make an investment, would you guys be willing to help me answer some question i couldnt find anywhere? I live in a humid country so rain, sweat and chilly weather is expected. Would humid and cold weather affect vintage watches significantly as well as sweat on those hot days? Thank you very much.