The New Patek Philippe Twenty~4 7340/1R Perpetual Calendar

Introduced in 1999, the Twenty~4 collection was Patek Philippe’s first dedicated line of feminine timepieces. The original model featured an Art Deco-inspired manchette (cuff) design, but in 2018, the brand unveiled the Twenty~4 Automatic, which is a round-cased iteration powered by an automatic movement. This year, Patek Philippe elevates the collection further by introducing a perpetual calendar complication, marking the collection's debut in the realm of Grand Complications.
Crafted entirely in 18K rose gold, the watch features a 36mm case with a slender profile of just 9.95mm, making it sit gracefully on the wrist. The case is meticulously finished with a combination of polished and brushed surfaces, enhancing its refined aesthetic. Two dial options are available. The Ref. 7340/1R-001 features a silvery opaline dial with a vertical satin finish, evoking the texture of shantung silk that feature irregular texture, while the Ref. 7340/1R-010 presents an olive green sunburst dial for a more contemporary appeal.

Glossary

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Glossary
Tritium

Tritium

Is a type of radioactive material used in some watches to illuminate the markers and hands in the dark. Tritium is a beta-emitting radiation material, and it emits light when it interacts with a phosphorescent material in a small glass tube inside the watch.

Watches that contain tritium provide independent illumination for the markers and hands for a long period in the dark without the need for external light sources such as sunlight or artificial lighting. Tritium emits a stable and continuous light for a duration of up to 10-15 years, thanks to its radioactive properties.

One of the advantages of using tritium in watches is that it is not affected by weather conditions or surrounding light sources, making it useful for use in various climatic conditions and in dark environments.