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Patek Philippe 10 Days Tourbillon Ref. 5101P

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

2005

Maker / issuer

Patek Philippe

This Patek Philippe 10 Days Tourbillon, Reference 5101P, is a rectangular, curved platinum wristwatch sold in May 2005. It features an Art Deco-inspired case design with stepped sides and a single Top Wesselton diamond set between the lugs at 6 o'clock.

The watch is powered by the manual-wind Caliber TO 28-20/222, which incorporates a one-minute tourbillon regulator and tandem mainspring barrels to achieve a 10-day power reserve. The salmon-colored dial is distinguished by applied black oxidized gold Breguet numerals and matching feuille hands. The movement is rhodium-plated, finished with fausses cotes, and bears the Seal of Geneva. It is equipped with a Gyromax balance and a free-sprung Breguet balance spring.

The watch is accompanied by its Certificate of Origin, original booklets, and a fitted box. The assembly is secured with an 18K white gold Patek Philippe deployant clasp.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Tourbillon wristwatch
Maker
Patek Philippe, Genève
Reference
5101P
Dimensions
30 x 52 mm
Case Number
4244218
Jewel Count
29
Date of Sale
May 20, 2005
Case Material
Platinum
Place recorded
Switzerland
Movement Number
3361136
Movement Caliber
TO 28-20/222
Maker / attribution
Patek Philippe

Design

Visible features
• Salmon-colored dial with power reserve and tourbillon indicators • Stepped case profile with visible diamond setting at the bottom lugs • Applied black oxidized gold Breguet numerals • Rectangular movement construction visible in the design
Case and Dial Design
The watch features a rectangular, curved platinum case characterized by polished, stepped sides. A prominent feature is the integration of a Top Wesselton diamond placed between the lugs at the 6 o'clock position. The case includes a transparent back secured by four screws, allowing visibility of the internal mechanics, and utilizes sapphire crystals for both front and back protection. The dial is finished in a salmon color, providing a distinct background for the applied black oxidized gold Breguet numerals. The layout includes a subsidiary dial for the constant seconds at the bottom and a power reserve indicator in the upper portion of the dial. Matching the hour markers, the watch utilizes black oxidized gold feuille-style hands for time indication.
Movement and Regulation
At the heart of the timepiece is the Caliber TO 28-20/222, a rectangular movement stamped with the Seal of Geneva. It is rhodium-plated and features fausses cotes decoration. The movement houses 29 jewels, with 6 set in gold chatons. Mechanical efficiency is supported by tandem mainspring barrels, which facilitate a 10-day power reserve. Regulation is handled by a one-minute tourbillon regulator mounted within an A-shaped cage under a polished steel bridge. The escapement is a lateral lever type. The movement utilizes a Gyromax balance, adjusted to heat, cold, isochronism, and 5 positions. Further technical components include a shock absorber and a self-compensating free-sprung Breguet balance spring.
Documentation and Accessories
The watch was officially sold on May 20th, 2005. It is accompanied by the original Certificate of Origin, which serves as official documentation for the piece. In addition to the certificate, the object is provided with its original fitted box and accompanying booklets. The watch is worn on an 18K white gold Patek Philippe deployant clasp. The auction description provides a grading system for the object, noting the case in 'very good' condition (Grade 2) and the movement and dial in 'as new' condition (Grade 1). All primary components, including the dial, case, and movement, are signed by the maker.

Identification

Reference
5101P
Serial number
4244218
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.

Research required

  • Research required: The specific identity of the 'booklets' accompanying the watch is not listed beyond the general description.
  • Research required: The long-term performance history following the 2005 sale remains undocumented in the provided text.
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