Don't miss the next drop
The Türler signature on the dial is the headline here. Tissot built the Seastar Ref. 42520-3 in significant numbers across the late 1960s and into the early 1970s, and most of them passed through Swiss jewelers without ever picking up a retailer mark. The ones that came through Türler of Paradeplatz, Zürich, with that small printed cosigning under TISSOT SWISS, are the keepers. The same caliber, the same case, the same dial layout, but a tiny printed word that quietly says this one was sold from the most respected watch retailer in Switzerland. To us, that is the kind of provenance detail that makes a vintage Tissot Seastar worth pausing on.
Türler was founded in Biel in 1883 by the brothers César Alexander and Jean Henri Türler, and the family moved the business to the corner of Paradeplatz in central Zürich early in the twentieth century. By the 1960s, Türler was the address for serious Swiss watch buyers, stocking Patek Philippe, Audemars Piguet, Vacheron Constantin, IWC and, at a more accessible tier, Tissot. The retailer was selective about which Tissot references it cosigned. Seastars sold to other Swiss jewelers came through plain dial. The Türler imprint was a deliberate quality cue at the point of sale, and sixty years later it still reads that way to collectors.
Inside ticks the Tissot caliber 781-1, stamped clearly on the partial bridge. The 781 family was introduced in 1959 as Tissot’s modular ébauche, designed so date, day, automatic and small seconds variants could share a base architecture and simplify production. The simple manual wind 781 ran until the mid 1960s, then the updated 781-1 took over from 1965 through 1972, beating at 18,000 vibrations per hour with seventeen jewels and roughly 49 hours of power reserve. It is honest, serviceable, well finished for its tier, and characteristically Swiss in the way it sits between a true dress caliber and a daily wear movement. The 781-1 in particular is the version most often found in the better Seastar references like this 42520-3.
The case is gold plated over a stainless steel base, measuring 34mm across and 40.5mm lug to lug, with squared, faceted lugs and a smooth case middle that catches light beautifully. There is honest wear at the lug tips and along the edges where the plating has thinned, exposing the steel underneath. We frame that as character, not defect. Sixty years of wrist time should leave a mark, and on a gold plated case from this era we genuinely prefer to see it. The snap caseback is brushed stainless steel and shows the expected scratch pattern from previous service openings. The inside of the back is stamped with the historic CHs TISSOT FILS maker’s mark, the Tissot shield logo, FOND BREVET, the WATERPROOF designation, the case maker code, and the reference 42520. Between the lugs at the side of the case is a small “20” stamping with the Tissot shield. The crown is the original signed Tissot T-logo crown, visible at the three o’clock side.
The dial is wonderfully clean. A silver vertically brushed surface frames the printed TISSOT SWISS wordmark and the small T-in-square Tissot logo at twelve, with TÜRLER cosigned just below in compact black text, and SEASTAR printed above six. Applied gold baton indices ring the dial with thin black inlays running their length, and there is a small T SWISS MADE T designation printed at the very bottom edge. That tritium notation places the watch firmly in the post-1960s window. The hands are gold dauphine with central polished bevels, in proportion with the case, and a thin gold sweep seconds completes the layout. There is no date complication and no extraneous text, which is exactly how we want a 1960s Seastar to read.
We have paired the Ref. 42520-3 with our anthracite suede leather strap, finished with subtle tonal stitching and our brushed OTTUHR buckle. The cool grey of the anthracite reads as natural against the warm yellow of the gold plate and lets the dial do the talking. It is a quiet pairing for a quietly handsome watch.
Serviced in-house at OTTUHR and backed by our 2-year mechanical warranty. For the collector who values a small retailer mark, a properly running 781-1, and an honest mid-1960s case over a flashier modern dress watch, this Tissot Seastar is, in our opinion, exactly the kind of underrated Swiss piece that quietly outperforms watches at twice the price.
