Patek Philippe

In the spring of 1996, Patek Philippe introduced a timepiece that would soon redefine modern calendar complications. That same autumn, the model was awarded “Watch of the Year” by the Swiss magazine Montres Passion, at a time when such distinctions were still rare.

The innovation lay in its practicality. Positioned between the traditional calendar, which requires adjustment five times per year for months shorter than 31 days, and the perpetual calendar, which requires no correction but is considerably more complex and costly, the Annual Calendar offered an elegant solution. Its ingenious mechanism required adjustment only once per year, at the end of February.

While Patek Philippe has never claimed to have invented the Annual Calendar outright, there was nothing comparable on the market when its design and engineering department began development in the early 1990s. The result was a patented and profoundly original mechanism, introduced in 1996 as reference 5035. Housed in a 37 mm case and powered by the caliber 315 S QA 24H, the model was distinguished by its balanced dial layout and applied Roman numerals.

Building on the success of the reference 5035, Patek Philippe expanded the line with numerous iterations, including in the introduction of reference 5146 in 2006. The present example belongs to this later generation, featuring a 39 mm case and, in bracelet configuration, elegant gold drop-link construction paired with a cream dial and applied gold hour markers. Bracelet versions were produced in yellow, white, and rose gold.

The present example offers the opportunity to acquire a timepiece featuring one of Patek Philippe’s most enduring and commercially successful complications of the past three decades.