The Pixel Watch is still rumored to be Google's first own-brand smartwatch. The company has added fuel to the rumor-fire to this effect by filing a patent for a new kind of watch-band clasp. It could be integrated into the prospective Watch in order to make first-party straps as good a business as they have become for Apple.
https://www.notebookcheck.net/Newly-discovered-Google-patent-suggests-unique-strap-release-mechanism-for-the-Pixel-Watch.415805.0.html