Omega Admiralty Diver135042 Burgundy doubts

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Hello everyone.
I spotted this 135042 on Chrono24.
I would like your opinion on it. The winding crown seems replaced with a wrong one to me, the bezel has a strange burgundy tone and also the mechanism that despite being declared to have been serviced seems a bit dirty.
I am convinced that your more keen eyes will be able to tell me more.

I attach photos and links
Thank you for your cooperation

https://www.chrono24.it/omega/omega...ual-winding-calibre-601-swiss--id37335414.htm

 
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Here's a nice one sold on the forum to compare it to.