Patek Philippe Gondolo Salmon Breguet Dial with Original Certificate of Origin in 18K White Gold Ref. 5124G OUT2024 This bezel function was explained

This bezel function was explained in Eterna advertisements and required manual setting of the triangle marker in line with the minute hand upon reaching the final dive depth

as is often seen on military-issued examples

And that bezel insert that has faded naturally of the decades just tops it off…

dating to the early 1990s

- Black countdown bezel

Patek Philippe Gondolo Salmon Breguet Dial with Original Certificate of Origin in 18K White Gold Ref. 5124G OUT2024 This bezel function was explainedThe Gondolo collection is named after the renowned Rio de Janeiro retailer, Gondolo & Labouriau, with whom Patek Philippe maintained a fruitful and enduring business partnership from 1872 to 1927. This collaboration led to the creation of exclusive timepieces for the Brazilian market, known as the Chronometro Gondolo. Initially, the collection featured only pocket watches, but by the 1920s, wristwatches were introduced. During a time when Europe was