Vintage Omega Watch Identification Help

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I am working to gain more knowledge on my watch or get pointed in the direction of a specialist I can work with to learn more. The watch was acquired somewhere between 1948-1954 by my grandfather as a gift from the original owner. It was a custom watch made by Omega. I have the original box but no papers. A watch maker opened the watch for me but didn't know much about the watch. He tested it and mentioned the movement has good timing, is original but needs a cleaning and lubrication.

What I know
1. The watch was manufactured in 1948 according to the serial number 11367113
2. Case 2802 SC | I haven't been able to find any references to this specific number except variations off it for the Seamaster 2802-1, 2802-2, 2802-6, 2802-7. I believe this case didn't go public until the 1950's.

What I would like to know
1. If there are any watches similar I could reference or know more specifically about the watch so I could potentially re-unite it with an original gold Omega strap that came with the watch
2. What model this watch is
3. If anyone knows of a decent watch maker that works on vintage Omega's in Southern California or Las Vegas, NV.
4. If original custom Omega's hold any value above a normal vintage.
 
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The fact it has a full rotor movement means that part wasn’t manufactured before 1954. The serial stamped into the caseback does not indicate 1948 manufacture, case serials run differently to movement serials. The 14.50m movement serial is more relevant for dating. The whole watch is mid 1950s in fact. Is there anything else that makes you think it is a custom order or special build? The model is simply 2802. Or 2802-1 if you prefer. The SC just means it has a centre second and is seen often on many models of the era, it doesn’t indicate anything special.
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Nothing much more to add except that the case was produced for Omega by Serva S.A. in La Chaux-de-Fonds.

Due to gold watches having smaller production runs than stainless/capped/plated models, the movement, while produced in approx 1955 may not have been cased until later, even up until 1958.

The only way to verify would be via an Extract of the Archives at Omega, but that's all gone down the gurgler now.
 
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The fact it has a full rotor movement means that part wasn’t manufactured before 1954. The serial stamped into the caseback does not indicate 1948 manufacture, case serials run differently to movement serials. The 14.50m movement serial is more relevant for dating. The whole watch is mid 1950s in fact. Is there anything else that makes you think it is a custom order or special build? The model is simply 2802. Or 2802-1 if you prefer. The SC just means it has a centre second and is seen often on many models of the era, it doesn’t indicate anything special.
Thank you for the reply! I was going off data I received from someone locally so I appreciate the clarifications on the movement and case. I am flying blind on Omega.

The watch came to my family from the Saudi Royal Family under King Saud. I was told it was a custom watch made for them and gifted to my grandfather. Unfortunately I only have word of mouth for that. The original band was a solid gold band (18k, 0.75?). My dad said it kept breaking on my grandpa due to the softness and he sold it and replaced it with a cheaper band that scratched the back case.

Based on what you provided it looks similar to this except this stainless steel with a slight variation on the dial. https://www.misterwolftime.com/prod...-luxe-automatic-ref-2802-1-in-stainless-steel

I reached out to Omega 2 weeks ago and I am waiting to hear back still.
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