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
Sidereal day

Sidereal day

Sidereal day is the time it takes for the Earth to complete one rotation with respect to the stars (using a fixed point) instead of the Sun, which is approximately 23 hours, 56 minutes, and 4.0916 seconds.

Some specialized clocks or timepieces have been designed to display sidereal time, which is based on the Earth's rotation relative to distant celestial bodies. These clocks often feature an additional sub-dial or display screen indicating the current sidereal time, allowing professionals in fields such as astronomy and navigation to track astronomical events with precision.