Need help identifying these vintage gold watches.

F fxingserious

Hello,
A friend of mine is interested in this particular watch, and I am wondering if these are legit Omega watches? She showed me 3 ebay listings....

I don't know anything about vintage watches and particularly gold watches. The pictures are of low quality and kinda blurry and only one of the listings has the case opened with some model number inside. A google search did not help.

Any help is appreciated! Thanks in advance.

https://www.ebay.com/itm/334280906015?_trkparms=amclksrc=ITM&aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=20200818142055&meid=7d5cffaa48994d559a4f764fad233ea6&pid=101113&rk=7&rkt=12&sd=255558588345&itm=334280906015&pmt=0&noa=1&pg=2047675&algv=DefaultOrganicWebV9BertRefreshRanker&brand=OMEGA&_trksid=p2047675.c101113.m2109

https://www.ebay.com/itm/155309667631?_trkparms=amclksrc=ITM&aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=20200818142055&meid=7d5cffaa48994d559a4f764fad233ea6&pid=101113&rk=2&rkt=12&sd=255558588345&itm=155309667631&pmt=0&noa=1&pg=2047675&algv=DefaultOrganicWebV9BertRefreshRanker&brand=OMEGA&_trksid=p2047675.c101113.m2109

https://www.ebay.com/itm/2555585883...q65kEbbSqi&var=&widget_ver=artemis&media=COPY

F fxingserious

Thank you all for the help! I appreciate it. 😀