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Blancpain. A very fine limited edition platinum automatic perpetual calendar wristwatch with equation of time, retrograde moon phases indicator, certificate and box
Many of the watches offered for sale in this catal… Read more BLANCPAINPlatinum Le Brassus Equation of Time No. 34/50THE PROPERTY OF A GENTLEMAN
Blancpain. A very fine limited edition platinum automatic perpetual calendar wristwatch with equation of time, retrograde moon phases indicator, certificate and box

SIGNED BLANCPAIN, LE BRASSUS EQUATION MARCHANTE MODEL, NO. 34/50, REF. 4238-3442A-55, CIRCA 2008

Details
Blancpain. A very fine limited edition platinum automatic perpetual calendar wristwatch with equation of time, retrograde moon phases indicator, certificate and box
Signed Blancpain, Le Brassus Equation Marchante Model, No. 34/50, Ref. 4238-3442A-55, Circa 2008
Movement: cal. 3863, automatic, 39 jewels, signed
Dial: semi-skeletonized, signed
Case: glazed display snap on back, 42 mm. diam., signed
With: platinum Blancpain deployant clasp, International Warranty stamped Bur Juman Centre and dated 04 November 2008, setting pin, Blancpain wallet, calendar card, product literature, box key, presentation box and outer packaging.
Special Notice

Many of the watches offered for sale in this catalogue are pictured with straps made of endangered or protected animal materials such as alligator or crocodile. These endangered species straps are shown for display purposes only and are not for sale. Christie’s will remove and retain the strap prior to shipment from the sale site. At some sale sites, Christie’s may, at its discretion, make the displayed endangered species strap available to the buyer of the lot free of charge if collected in person from the sale site within 1 year of the date of the sale. Please check with the department for details on a particular lot.
On lots marked with an + in the catalogue, VAT will be charged at 7.7% on both the premium as well as the hammer price.

Condition Report

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Lot Essay

The property of an important private collector, the present timepiece impresses by its overall condition as well as accompanying accessories. It is no. 34 of the limited edition of only 50 examples of this model.

Amongst the most refined and elegant timepieces of the Blancpain manufacture, the present watch features an important array of complications, including an impressive equation of time display which allows the watch to follow the cycle of the sun. For convenience, humans have defined the day to be exactly 24 hours in length and watches that we know of are faithful to that definition regardless of their complication. In reality, however, the defined 24-hour day is a convenience, an average that serves most purposes well but does not correspond exactly to the actual length of a solar day. As the earth’s orbit is not exactly round and the earth’s axis of rotation is inclined by 23 degrees, the actual solar day may be several minutes longer or shorter, depending on the time of year, than 24 hours. The difference between the length of the actual solar day, termed “solar time”, and the 24-hour day, termed “civil time”, is called the equation of time. The accumulated differences between civil time and solar time can be as much as +14 minutes and –16 minutes; on four days per year the errors catch up and the solar time and civil time correspond exactly.

Blancpain was successful in mastering an innovative gear train that combines the running of the equation gear train controlled by a complex-shaped cam, and the running train of the watch’s civil minutes-hand to drive the running equation hand. This complication had been previously used in large clocks and pocket watches and is a skill that has been developed carefully over two centuries.

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