Important Modern and Vintage Timepieces

Geneva, Mar 27, 2011

LOT 391

Breitling Pink Gold Mulliner Tourbillon Breitling, for ?Bentley Motors - Mulliner Tourbillon?, movement No. 1884B070, Ref. K18841. Made in a very few examples only, production of this model started in 2005. Extremely fine, rare and unusual, heavy, oversized, water-resistant, 18K pink gold chronometer wristwatch with visible one-minute tourbillon regulator, round button 30-second chronograph, register, tachometer, date, slide-rule and an 18K pink gold Breitling deployant clasp. Accompanied by a special fitted wooden box, COSC certificate, guarantee and booklet.

CHF 40,000 - 60,000

USD 40,000 - 60,000 / EUR 30,000 - 45,000

Sold: CHF 62,500

C. Three-body, solid, polished, bi-directional revolving reeded bezel to operate the slide-rule, lapidated lugs, transparent screwed down case back with burlwood veneer ring, screwed-down crown, sapphire crystals. D. Satiné brown with applied mother-of-pearl inlaid pink gold indexes and luminous dots, subsidiary dials for the date and the 15-minute register, outer 1/6th seconds and tachometer graduations, outermost revolving white slide-rule, aperture for the visible one-minute tourbillon regulator under a hobnail-decorated bridge. Luminous pink gold baton hands. M. Cal. 18B, rhodium-plated, fausses cotes and oeil-de-perdrix decoration, 28 jewels, lateral lever escapement with one-minute tourbillon regulator with 3 equidistant polished steel arms, monometallic balance, shock absorber, self-compensating Breguet balance spring. Dial, case and movement signed. Diam. 49 mm. Thickness: 15.5 mm. The Property of a German Collector


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Grading System
Grade:
Case: 2

Very good
Movement: 2*

Very good

Overhaul recommended, at buyer's expense
Dial: 1-01

As new

HANDS Original

Notes

What is a Tourbillon ? A Tourbillon is a regulating mechanism in which the escapement of a movement is housed within a revolving carriage. It was developed in an effort to attain better precision.When a watch is in a vertical position, the force of gravity will speed the balance wheel as it moves in its downward arc and slow it as it moves upward, creating deviational errors of timekeeping. By placing the balance and escapement in a carriage that revolves 360° per minute, these errors become averaged and the timekeeping becomes constant and consequently adjustable. Created by Abraham Louis Breguet in 1795, the tourbillon is considered a difficult and complex achievement by any watch manufacturer.