It used to be a traditional italian watch brand - and I’d bet that it went belly-up like 99% of watch beands during the quartz crisis.
Now the brand seems to be owned by an Italian jewwlery store chain, which is certainly better than many other brands only claiming to be Italian/European.
But it’s not a “traditional” watch brand.
If you like Sinn watches, have a look at Gunand:
https://www.guinand-uhren.de/watches.html
That’s the small boutique run by Helmut Sinn - former pilot and flight instructor - afterhe sold Sinn Spezialuhren. Turns out he didn’t want to retire and ran this small shop almost until he died at 102 years of age. It’s been run as a mom-and-pop shop today by a charming couple.
Great quality, many of Helmut Sinn’s original dsigns and great value because they don’t sink so much money into advertising.