Model History
The name "Mergulhador" — "diver" in Portuguese — recalls the decades when Mathey-Tissot, like many Swiss manufacturers of the postwar era, cultivated a significant commercial presence in South America and in particular in Brazil, where in the 1970s the brand launched its own entry-level dive watch designed for that specific market.
The model returned to the spotlight thanks to a collaboration with the American atelier Massena LAB, founded by William Massena, former director of the TimeZone watch forum, which produced a faithful reissue in "skin diver" style — an essential case, with no rotating bezel, as close as possible to the original object — as a natural follow-up to the work the same atelier had previously done on the brand's Type XX chronograph.
Alongside that more philologically accurate reissue, the Mergulhador has become a permanent fixture in the regular Mathey-Tissot catalog in an updated form more oriented toward everyday use: a 41 mm case, automatic Sellita SW200 movement with date, unidirectional rotating bezel and water resistance declared up to 200 meters, also available in a GMT execution for a second time zone.
Technical Specifications
Main Executions
The version made with Massena LAB follows the same approach the atelier had already used the previous year for a chronograph inspired by the brand's Type XX: in both cases, Massena LAB worked starting from an actual historical Mathey-Tissot model, rather than designing a watch "in vintage style" with no direct forebear — a philological approach that is rare for a brand with an otherwise very broad and generalist catalog.

