136041 is manual wind and date, it can have the 610 movement or 613 with quickset date (push pull)
135041 is manual wind no date
166041 is automatic and date.
For the price, there was a 166041 new old stock with tags that has been sold 335 Euros on Ebay in Italy last month
It was a nice deal for the one who bought it, but anyway you should not spend much more than 500 $ for theses watches , they are easy to find in good condition. (except if it has a bracelet that cost the price of the watch)
https://www.ebay.fr/itm/NOS-omega-automatic-cal-565-ref-ST-166-041/222848339266?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649Purchases made through these links may earn this site a commission from the eBay Partner Network
Gent : you can also wear this watch with an original 1122 fixo-flex with 558 endlinks
Docthomas : yours is stunning !!
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