Patek Philippe

Limited Edition Annual Calendar "Mercury" Reference 5960G-010, a white gold automatic wristwatch with date, day, month and flyback chronograph

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Patek Philippe 5960G-010 "Mercury" Annual Calendar Flyback Chronograph Limited Edition of only 100 pieces in 18kt white gold with a rare blue "Bleu Soliel Mat Obus" dial. Self-winding automatic movement with a gorgeous skeleton exhibition sapphire case back. Fitted on a blue leather crocodile strap with an 18kt white gold fold-over deployant buckle. 


The 40.5mm diameter solid two-body case is one of the largest Patek Philippe watches ever produced. It features downturned lugs and an angled bezel which are polished. This timepiece features a magnificent and rare blue "Bleu Soliel Mat Obus" dial with applied hour markers with adjacent luminous dots and luminous feuille hands. The chronograph subdial is oversized, and accordingly very legible. The chronograph hours scale is printed in blue while the minutes scale is in red. The associated chronograph hour and minute hand are the same color as their scales for ease in reading the elapsed time. It has a perimeter minute and 1/5th seconds scale, and an ivory off-white subsidiary dial for the combined 30/60-minute and 12-hour totalizer. The caliber CH28-520 is Patek's first-ever automatic chronograph. Featuring column wheel construction with 456 individual parts, the caliber also makes use of a 21k gold rotor, 40 jewels, and is stamped with the Patek Philippe Seal. There is a 55-hour +/- power reserve indicator at 12 o'clock, and there are apertures for the day, date and month. 


If ever there were a rare modern Patek wristwatch, this would be it. Here is Patek Philippe's first automatic chronograph in their 170+ year blue-ribbon history. It's also Patek's first flyback chronograph. And, due to the caliber's unique construction, the central chronograph seconds hand can be operated continuously (to serve as a conventional seconds hand) without harming the mechanism or adversely affecting accuracy.


The reference 5960 also features the first completely in-house chronograph caliber from Patek since the early 1980s. (In the interim years, all of Patek's chronograph calibers have been built from Nouvelle Lemania ebauches.) Finally, this chronograph is the first to feature the 30-minute and 12-hour chronograph indicators in the same subdial.


This Patek masterpiece also provides an annual calendar, with the day, date and month displays arranged in an arc from 10 o'clock to 2 o'clock. Within the chronograph subdial there is a small aperture that displays a day/night indicator. To round out the complications, a power reserve indicator is located just underneath the date window.


Overall, this watch is not your grandfather's typical Patek Philippe. It was a hit from the minute it was released. This watch takes Patek to an entirely new stratosphere; making it a watch you can wear and enjoy both casually and formally. The strap is a hand-sewn Patek matte blue crocodile with a fold-over Patek Philippe deployant clasp.

Condition Report

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Very Good
Like New

The watch is in overall good condition with light wear throughout commensurate with age. Case is in overall good condition with minor surface wear. Strap is in good condition. Dial is in overall good condition. The movement is running at the time of cataloging, however, it was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please note that Sotheby's does not guarantee the future working of the movement.

Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) cannot be shipped outside the country of sale. We reserve the right to remove these bands prior to shipping.

Reference Number



Date, Day of the Week, Month, Annual Calendar



Dial Color(s)


Dial Numerals


Movement Type


Case Material(s)

White Gold

Case Size (mm)


Case Back

Screw-down, Sapphire display-back

Band Material

Crocodile Skin

Dimension Notes

Fits a wrist size of 7 inches or smaller.

Clasp Type

Deployant buckle

Clasp Material(s)

White Gold


Dial, Movement





Conditions of Business

Please note that the cancellation right for EU/UK purchasers applies to this item. Please read Condition 19 of the Buy Now Marketplace Conditions of Business for buyers for more information. Read more here.