I think they are a lot like each other as I have picked the wrong one up several times, to non WIS ( Mrs STANDY ) they look like the same watch. The above post is what I was looking for when I started this thread.
I can play this game with someone else's watches Here is a sublime Rolex from the @adam78 collection... https://omegaforums.net/threads/show-us-your-guilloché-and-faux-guilloché.44708/ ...and a humble Tissot:
And here is a lovely Wittnauer from the @MMMD collection... https://omegaforums.net/threads/polerouter-knock-off.27866/ ...as compared to this: Both companies were apparently shopping at the same specialty dial manufacturer..!
Omega and Tissot is extremely alike from the time when they were merged. I believe this pic shows that is a good way