The Patek Philippe Complications Annual Calendar (ref. 5146/1J-001) updates a modern classic with opulent uniformity – pairing yellow gold case and bracelet with a taupe‑toned lacquer dial, rich in both texture and function.

Measuring 39mm across, the polished yellow gold case houses the automatic calibre 324 S IRM QA LU, which powers the full annual calendar suite – day and month windows at 12 o’clock, moonphase and date subdial at 6 – along with a power reserve indicator. With a 45-hour power reserve and Patek’s Spiromax balance spring, the movement strikes a balance between mechanical refinement and reliability. This reference is completed by a polished yellow gold ‘rice bead’ bracelet and is water‑resistant to 30m.

Introduced in 2010, ref. 5146/1J-001 builds on the legacy of the 5035 – Patek’s original annual calendar – bringing full-gold presence to one of the most practical complications in modern watchmaking.