Patek Philippe Grand Complication Ref.5951P Heads to Bonhams Auction: A Rare Platinum Perpetual Calendar Chronograph
A Coveted Timepiece Emerges from Bonhams' November 2023 Auction
Bonhams is set to present an exceptionally rare Patek Philippe Grand Complication Ref.5951P at their upcoming auction, marking one of the most significant haute horlogerie lots to appear on the market in recent memory. This platinum perpetual calendar split-seconds single button chronograph, dating to circa 2014, represents the pinnacle of watchmaking artistry and has attracted considerable attention from collectors worldwide.
Technical Specifications and Movement Details
The Ref.5951P houses Patek Philippe's caliber 27-525 PS Q, a manual winding movement that demonstrates the brand's unwavering commitment to traditional watchmaking excellence. This particular reference combines several of horology's most coveted complications in a single timepiece.
| Specification | Details |
| Model | Ref.5951P |
| Case Material | Platinum (Pt950) |
| Case Diameter | 37mm |
| Case Number | 4571417 |
| Movement | Caliber 27-525 PS Q, manual winding |
| Dial Color | Blue |
| Complications | Perpetual Calendar, Split-Seconds Chronograph, Moon Phases, Leap Year Display |
| Production Year | Circa 2014 |
| Case Back | Transparent exhibition |
Understanding the Grand Complication
The term "Grand Complication" refers to timepieces that incorporate three or more major complications. The Ref.5951P goes beyond this threshold by featuring a perpetual calendar, split-seconds chronograph, moon phases, and leap year display. The perpetual calendar automatically accounts for months of varying lengths and leap years, requiring no manual correction until the year 2100.
The split-seconds chronograph, also known as a rattrapante, is considered one of the most difficult complications to manufacture. It allows the wearer to time two concurrent events with precision—a feature prized in both sporting and scientific contexts. For those interested in understanding movement mechanics, our guide on movement comparisons provides foundational knowledge applicable across different watch categories.
Accessories and Provenance
The lot includes Patek Philippe's signature presentation box, Certificate of Origin, and all related literature—elements that significantly enhance its desirability and value in the secondary market. Complete documentation remains essential for collectors seeking to verify authenticity and establish provenance.
- Original presentation box
- Certificate of Origin
- Related literature and instruction manuals
- Platinum deployant buckle with endangered species strap
Market Context and Collector Interest
Patek Philippe's Grand Complication references consistently rank among the most sought-after timepieces at major auction houses. The Ref.5951P, with its distinctive blue dial and platinum case, offers a contemporary interpretation of traditional complications. The combination of precious metal construction and mechanical complexity positions this piece within the upper echelon of collectible watches.
For those new to watch collecting or considering their first investment piece, understanding water resistance ratings and case construction can be invaluable. Our article on water resistance testing covers principles applicable across different price points and case materials.
Auction Details
According to www.bonhams.com, the Patek Philippe Ref.5951P appears as Lot 920 in the November 2023 auction. The transparent case back reveals the intricate caliber 27-525 PS Q, allowing appreciation of the hand-finished bridges, Geneva stripes, and beveled edges that define Patek Philippe's finishing standards.
Prospective bidders should note the case number 4571417 and verify all accompanying documentation. The platinum buckle and original strap complete the ensemble, maintaining the watch in its original delivered configuration.
Frequently Asked Questions
What complications does the Patek Philippe Ref.5951P feature?
The Ref.5951P includes a perpetual calendar, split-seconds chronograph, moon phases, and leap year display, making it a true Grand Complication timepiece.
What is the significance of the "P" designation in Ref.5951P?
The "P" suffix denotes a platinum case, which is considered the most prestigious precious metal in watchmaking and commands a premium over gold alternatives.
When was this particular watch manufactured?
According to Bonhams, this Ref.5951P dates to circa 2014, making it a modern production example of Patek Philippe's Grand Complication lineage.
Source
According to www.bonhams.com