In fact, it was before quartz revolution since it was official in 1930 after 5 years of co-working.
Position of each company was almost defined in 1930 with Omega for precision watch and Tissot for everyday.
During all this time, Tissot and Omega shared a lot of thing but always kept their own identity.
On Movement, Omega always add a little something. Tissot is almost working on cost reduction and innovation with the Astrolon for example.
No, what it's quite interesting with this Yachting, it's like an Omega guy call a Tissot one and said :
Hi, my friend, I have a bunch of complete case, do you want it ?
I had many of Tissot watch in hands and never seen it on other model.
The only other situation is the co-branding with Aquastar as below, but here they didn't try to remove the Aquastar branding.
View attachment 706550
Click to expand...