The Patek Philippe references 4910 and 4911 represent the origins of the Twenty~4 collection, a family created to offer a contemporary ladies' watch that combined everyday practicality with the elegance expected of Patek Philippe. Introduced in 1999, the collection marked a significant departure from the manufacture's traditional round Calatrava designs, introducing a distinctive rectangular case inspired by Art Deco architecture. Powered by a high-precision quartz movement, the 4910 and 4911 were designed as refined daily companions, featuring integrated bracelets, clean dials and a slim profile that quickly established the Twenty~4 as one of Patek Philippe's most successful ladies' collections.

Produced in stainless steel and precious metals, with both understated and diamond-set variations, the references 4910 and 4911 laid the foundation for the modern evolution of the Twenty~4 family. Their combination of contemporary styling, exceptional finishing and practical wearability broadened Patek Philippe's appeal among women seeking a luxurious everyday watch without mechanical complexity. Today, these references are recognised as the models that established the Twenty~4 collection, paving the way for later generations while remaining faithful to the elegance and craftsmanship that define Patek Philippe.