Launched in 2005, reference 5146 is the second wristwatch model made by Patek Philippe featuring an annual calendar function. The model replaced reference 5035 which was launched in 1996, at the time the first serially produced annual calendar model ever made. Before this innovation, watchmakers were offering either highly complicated perpetual calendar pieces or relatively simple triple calendar watches. Reference 5146 maintains intact the aesthetic canons of the original reference 5035, distinguished by three subsidiary counters at 2, 6 and 10 o’clock, but with a change of the dial at 6 o’clock: while reference 5035 features a 24-hour subsidiary dial, the present model has a moon phase display. This architecture coupled with the distinguished cream dial and the timeless Calatrava proportions of the case creates a supremely elegant timepiece, with the blue moonphases adding a bit of flair to the ensemble.

The present example is fresh to the market and preserved in excellent condition. It is offered as a complete set with its Patek Philippe Certificate of Origin, setting pin, product literature, wallet, fitted presentation box and outer packaging.