Thanks for the link
Interesting
I have just purchased my first Tag (aquaracer) and have been reading up on it a little.
I see it has a calibre 5 movement but notice it can be fitted with an eta or sellita base caliber.
Do you have an idea why they use 2 different types and is it pot luck which one I will get?
Also how will I know (I see one has one more jewel fitted than the other) my case back isn’t see through so how will I know?