Important Modern & Vintage Timepieces

Hong - Kong, Oct 09, 2010

LOT 315

Jaeger-LeCoultre, Master Tourbillon Jaeger-LeCoultre, "Master Tourbillon - 1000 Hours", case no 2395315, Ref 146.8.34S. Sold on June 11, 2007. Very fine and rare, self-winding, water-resistant, stainless steel wristwatch with visible one minute tourbillon regulator, independently adjustable hour hand for use as a second time- zone , 24-hour indication, patented semi-instantaneous special date function and a stainless steel Jaeger-LeCoultre double deployant clasp. Accompanied by the original wooden box, loupe, Certificate of Guarantee and instruction booklet.

HKD 190,000 - 270,000

USD 25,000 - 35,000 / EUR 19,000 - 27,000

Sold: HKD 250,000

C. Two-body, solid, polished, inclined bezel, transparent case back with 4 screws, concave lugs, sapphire crystals. D. Satiné silver with applied steel dart indexes and Arabic numerals, luminous dots, subsidiary 24 hour dial, outermost date graduation, the date hand jumping from 15-16 so as not to obscure the tourbillon, aperture for the visible one-minute tourbillon regulator at 6, carrying the 3-spoke blued steel seconds hand, independently adjustable hour hand. Polished and frosted steel alpha hands. M. Cal. 978, rhodium-plated, fausses cotes decoration, 33 jewels, lateral lever escapement with one-minute tourbillon regulator, titanium bridge, 3 equidistant arm titanium carriage, monometallic balance, self-compensating Breguet balance spring, 22K gold rotor decorated with relief engraving. Dial, case and movement signed. Diam. 41.5 mm. Thickness 12.5 mm


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Grading System
Grade: AA

Very good
Case: 1

As new
Movement: 1

As new
Dial: 1-01

As new

HANDS Original

Notes

The Master Tourbillon's calendar is very ingenious. In order that the date hand doesn?t obstruct the tourbillon for several days per month, the date hand makes a quick transit performed in several "jumps" from the 15th to the 16th of each month. The date hand jumps almost a quarter way around the dial, a large move that happens in the course of one day and is facilitated by a small rack of fine teeth that engage once per month to make the date transition. This very rapid transition takes place between midnight and 04:00 in the morning on the 16th.