Patek Philippe Ref. 5100R 10 Days

Technical characteristics

Type

10-day power reserve wristwatch

Maker

Patek Philippe

Serial

3201763

Edition

Limited edition of 750 pieces

Movement

Cal. 28-20 / 220

Reference

5100R

Dimensions

34 x 46 mm

Power Reserve

10-day

Place recorded

Switzerland

Maker / attribution

Patek Philippe

Design

Visible features

• Gray dial with applied pink gold indexes and numerals • Up-and-down power reserve indicator at 12 o'clock • Subsidiary seconds dial at 6 o'clock • Transparent case back with four screws

Case and Dial Design

The Patek Philippe Ref. 5100R is housed in a solid 18K pink gold case described as rectangular and manta ray-shaped. It features a polished finish, a protected winding crown, and sapphire crystals on both sides, with the back secured by four screws. The dimensions are 34 mm by 46 mm with a total thickness of 12 mm. The watch is confirmed as water-resistant by the auction documentation. The dial is gray, contrasting with applied pink gold dart indexes and Arabic numerals. It includes a subsidiary seconds dial positioned at the 6 o'clock mark and an up-and-down power reserve indication located at 12 o'clock. The time is displayed via pink gold dauphine hands. The dial, case, and movement are signed by the manufacturer.

Movement and Escapement

The watch is driven by the Caliber 28-20 / 220 movement, which is rhodium-plated and features fausses cotes decoration. The movement includes 29 jewels, nine of which are set in 18K gold chatons. It is engineered with a double-barrel system to achieve a 10-day power reserve. The escapement is a straight-line lever type, paired with a Gyromax balance that is adjusted for heat, cold, isochronism, and five positions. Additional features include a shock absorber system and a self-compensating free-sprung flat balance spring. The movement is marked with the Seal of Geneva Quality Mark, certifying the quality of its components and assembly.

Provenance and Authenticity

This watch was manufactured in 2000 as part of a restricted production run of 750 pieces created to celebrate the third Millennium. The lot is accompanied by its original fitted box and the Certificate of Origin. The auction description reports the object's condition as 'very good' for the case and movement, and 'as new' for the dial. The watch is presented with an 18K pink gold Patek Philippe buckle. The documentation provided confirms the movement number as 3201763.

Identification

Reference

5100R

Serial number

3201763

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.