Introduced in 1961, the ref. 3445 holds a special place in Patek Philippe’s history as the firm’s first serially‑produced self‑winding wristwatch with a date function. Valued by collectors for its harmonious proportions, clean case design, and practical wearability, the model is equally at home tucked under a cuff in the boardroom or worn casually on the weekend.

Produced until 1981 across three distinct series and in all four precious metals, the reference enjoyed two decades of quiet success. The first and second series preserved the original design with only minor refinements, while the third series introduced notable upgrades: a higher bezel, a sapphire crystal, and a display back.

The present watch, a yellow gold ref. 3445 from 1963, belongs to the first series, identifiable by its movement number in the 1.12 million range. Preserved in excellent overall condition, with a desirable sharply defined case and crisp hallmarks, it is further accompanied by a Patek Philippe Extract from the Archives confirming its date of production. A classic and refined example of one of Patek Philippe’s most important mid‑century references.