Patek Philippe Annual Calendar Regulator – Reference 5235/50R-001 (2020)

Heritage Narrative

The Patek Philippe reference 5235/50R is one of the most distinctive interpretations of the Annual Calendar complication, combining practical calendar functionality with a regulator-style display inspired by precision clocks historically used in watchmaking workshops. With its contemporary dial architecture and advanced movement technology, the 5235 stands apart as a modern Patek Philippe complication with strong technical identity.

This example from 2020 is presented new and offered as a full set. The watch features a two-tone graphite and ebony black dial with a vertical satin finish, designed for clarity and depth. The regulator layout separates the indications: hours and seconds are displayed on subdials, while the central hand is dedicated to minutes, creating a highly legible and instrument-like presentation. Day, date, and month are shown through apertures, maintaining the clean symmetry of the dial.

Housed in an 18kt rose gold case measuring 40.5 mm, the watch balances contemporary proportions with refined finishing. A sapphire display caseback reveals the calibre 31-260 REG QA, a self-winding movement featuring an off-center 22k gold micro-rotor and advanced components developed through Patek Philippe’s Advanced Research program, including a Pulsomax escapement and Spiromax balance spring in Silinvar.

Completed with a black alligator leather strap and rose gold pin buckle, the 5235/50R offers a rare combination of practical annual calendar functionality, innovative engineering, and a unique regulator-style display, making it especially appealing to collectors seeking a modern Patek Philippe complication outside the standard catalogue look.

Technical Specifications

Brand:
Patek Philippe

Model:
Annual Calendar Regulator

Reference:
5235/50R-001

Year:
2020

Movement:
Patek Philippe self-winding automatic mechanical movement, Calibre 31-260 REG QA
Off-center 22k gold micro-rotor

Complications:
Annual calendar
Day, date, month (apertures)
Regulator-style display (separate hour/seconds, central minutes)

Case:
40.5 mm 18kt rose gold case

Bezel:
18kt rose gold bezel

Crystal:
Sapphire crystal
Sapphire display caseback

Dial / Hands:
Two-tone graphite and ebony black dial (vertical satin finish)
Applied hour markers
Hands

Strap:
Black alligator leather strap

Clasp:
18kt rose gold pin buckle

Water Resistance:
30 m (factory specification)

Condition & Inclusions

Overall Condition:
New

Service Status:
Factory condition, movement tested and functioning correctly

Set:
Full set — includes box and warranty

Shipping & Logistics

The watch is stored securely and shipped fully insured within 1–3 business days. Worldwide shipping is available. Any applicable import duties or taxes are the responsibility of the buyer.

Shipping & Returns

Complimentary insured worldwide shipping and a 14-day return window. Each timepiece is authenticated, time-tested, and professionally prepared prior to dispatch. Secure packaging, tracking, and full insurance are included with every shipment.