Don't miss the next drop
Twenty-five jewels, printed in the open right under the hands, reads like a number meant to be counted and admired. In its day, that was exactly the point. What the dial leaves out is that only about seventeen of those jewels actually run the watch. The rest are there to serve the winding, and that is the quiet, honest story of the Gruen Precision Autowind: a watch built to wind itself, and printed to let you know it.
Gruen always sat in an unusual spot. The company ran out of Cincinnati, about as American as a watch brand gets, yet its movements were made in Switzerland at Gruen’s own Precision factory in Biel. Precision was less a model line above the rest than the name Gruen reserved for the calibers it was proud of. The Autowind was its long campaign to keep pace with the postwar rush toward self-winding watches, a project the company launched in 1950 and kept refining for years. The earliest Autowinds used a bumper that swung and rebounded off springs. This one is the later answer, and the more satisfying one.
Lift the caseback and the reason sits right there. A full rotor, a complete semicircle of metal, sweeps all the way around to wind the mainspring in both directions, engraved for the Gruen Watch Co. and stamped with the caliber, “N 710 SS.” A full rotor runs smoother and feeds the mainspring more efficiently than the bumper it replaced, and watching it turn is half the reason to open a caseback at all. This is the mechanism those extra jewels were bought to protect, the kind of in-house mechanical detail that separates a considered vintage piece from a generic one.
The case is a slim mid-century round, 34mm across and close to 41mm lug to lug, with tapered lugs and a softly domed acrylic crystal that bends light the way only old plexi does. The build is spelled out on the back, a base metal bezel over a steel snap back, and the caseback keeps up the sales pitch with its ring of period promises about water, shock and magnetism. The signed Gruen crown pulls cleanly through its positions. Honest wear sits where a watch this age earns it, fine hairlines across the polished flanks, the marks of a watch worn and kept rather than refinished.
The dial is a bright silvered white gone just slightly warm with time. Applied faceted baton markers ring the face, doubled at twelve, each tipped with lume that has aged to a soft cream, and they are answered by faceted dauphine hands and a thin sweep seconds crossing the center. Gruen Precision reads under twelve, 25 Jewels Autowind under the hands toward six, and the dial comes through clean and original, with only the faintest freckling to mark its years.
It comes to us on a bright blue grained leather strap with cream contrast stitching, a pairing that wakes up an otherwise quiet, silver-toned watch and plays against the warm tan of the strap’s underside. A softer strap would dress it down just as easily, but it wears well exactly as it sits.
Serviced in-house at OTTUHR and backed by our 2-year mechanical warranty. For the collector who likes a watch with a point of view, the Gruen Precision Autowind makes a specific little case for itself: an American name, a Swiss movement, and twenty-five jewels that turn out to mean just what they say. Plenty of mid-century automatics keep good time. This one shows its work.
