A simple pleasure.
The first generation GO Senator Sixties (since re-christened "Sixties"), SS, with plain, but beautifully finished, convex opaline silver dial, curved minute hand, and engraved and gilded(?) indices. Unpretentious and charming, even in the face of the more recent elaborately colored and textured dials. At its release (in 2007, I think?) this was arguably in the vanguard of the now-prevalent trend of reviving vintage designs. I leave it for others to argue whether this trend has been a good thing, but GO certainly seems to have gotten a lot of mileage out of the Sixties line to date.