Patek Philippe
Annual Calendar Regulator Rose Gold
5235/50R-001
Regulator discipline meets annual-calendar intelligence in 18k rose gold.
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Overview
The Patek Philippe Reference 5235/50R-001 brings together two historically distinct horological traditions — the precision regulator display and the annual calendar complication — within a 40.5 mm 18k rose gold case. Its two-tone graphite and black gradient dial arranges hours, minutes, and seconds on separate axes in the manner of a master regulator clock, lending the piece an austere, technical character unusual among dress watches. Calibre 31-260 REG QA, developed in-house, drives both the regulator layout and the annual calendar mechanism that requires only a single manual correction per year.
History
Patek Philippe introduced the Annual Calendar complication in 1996 with Reference 5035, positioning it between the simple calendar and the perpetual calendar by automatically accounting for months of 30 and 31 days. The 5235 family extended that legacy by pairing the annual calendar with a regulator-style dial, a combination that underscores the manufacture's interest in legibility and classical clockmaking aesthetics. Reference 5235/50R-001, in rose gold with its distinctive gradient dial, represents a later evolution of the 5235 line and has been in production since 2019, appealing to collectors who prize both technical depth and restrained visual sophistication.
Notable points
- Regulator-style dial separates hours, minutes, and seconds onto distinct sub-registers, eliminating the visual overlap common to conventional three-hand layouts.
- The annual calendar mechanism — a Patek Philippe hallmark since 1996 — distinguishes between 30- and 31-day months automatically, needing correction only at the end of February.
- Calibre 31-260 REG QA is an entirely in-house movement, reflecting the manufacture's integrated approach to both complication design and finishing.
- The two-tone graphite and black gradient dial creates a subtle tonal depth that complements the warmth of the 18k rose gold case.
- At 40.5 mm, the case occupies a considered middle ground — substantial enough for the dial's information density, yet consistent with Patek Philippe's dress-watch proportions.
Specifications
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