Advice

Hi, I inherited three Omega watches and I’m really struggling with information on one of them. Whilst I know very little about the watches I have complete a reverse Image on Google lens and looked at various auction sites for completed and existing auctions.

The one I’m most interested in has a rose gold face and a linen dial, it’s also gold on the back with what appears to be a serial number. I’ve tried looking the number up, if this is a serial number to no avail. My uncle was quite comfortable so I’m not questioning the authenticity of his watches. I do plan on selling the watches possibly through an auction house but I’m really struggling with this one and any additional information would be greatly appreciated. I’ve also included photos of the other watches if anyone is so inclined to offer me any advice and information. When I inherited them they were service straight away by reputable watchmaker and have essentially been sitting in the bank since then. Given that I’m new on the site if there’s anything I’ve missed of overstep the boundaries of the sub I apologise.

As others have already commented, the model number, serial number and caliber number is found on the inside of the timepieces. Any watchmaker can open them and allow you to take sharp macro photos of inside the case back and the inside of the mechanism (focusing mainly on any numbers and text that can be read once finished) which will then be all the information required. Not knowing where you are located, I remember years ago when I passed through some city in Australia,(Adelaide I think??) there were " Mister Minute" kiosks that offered battery replacements and water resistant pressure tests with information of whatever model and watch you brought in. One was a trained watchmaker as well!!
The models in your photos appear quite familiar to many of the ones that have passed through my hands

Watch number 1 as a rough intuition points towards the typical manual wind Omega from the early 1960's resembling one that I worked on last year powered by a manual wind caliber 286. In my experience I could wager on the case being either a locally made solid gold or possibly an American made gold filled one by Norman Morris.
Watch number 2 seems like the Seamaster 166.002 which is either powered by a caltiber 562 or 565 for quickset. What puzzles me is the case back which for the Seamaster does not look right as it is the wrong type of case back which would be more for a Geneve model. As it is a plated case, maybe these bland backs only came on plated models It is missing the Seahorse emblem that is usually found on these model Seamasters
Watch number 3 appears to be the typcial 1970's Geneve model ( confident around 1972-73 which is most likely powered by a later 10xx series which could range from 1002, 1010 or 1012
This would be my interpretation of the likely hood these pieces may be if I was evaluating a purchase. I could still be wrong, but on the balance of probabilities would be in that sample space. Most importantly enjoy them as they would today be almost unaffordable new from a dealer for the average person wanting one on a miimal wage .