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A Tourbillon wristwatch by Breguet, manual wind movement,…
Lot No.
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Description:
A Tourbillon wristwatch by Breguet, manual wind movement, circular silvered engine turned dial with off-set hour and minute subsidiary dial with black Roman numerals, tourbillon carriage at six, sapphire crystal, signed case, dial and movement, 18ct gold case with hand engraved plate to reverse and visible movement, twenty one jewels, reference number 2294A, movement number 111, calibre 558, to black crocodile leather bands, diameter 36 mm, boxed with papers. In very good overall condition. Some minor wear to bands. Ticking at time of inspection. Not recently serviced or timed. Approximate 50 hour power Reserve.Water Resistant to 30m/100ft., Developed around 1795 and patented by the French-Swiss watchmaker Abraham-Louis Breguet on June 26, 1801, a tourbillon aims to counter the effects of gravity by mounting the escapement and balance wheel in a rotating cage, to negate the effect of gravity when the timepiece (thus the escapement) is stuck in a certain position. By continuously rotating the entire balance wheel/escapement assembly at a slow rate (typically one revolution per minute), the tourbillon averages out positional errors., originally an attempt to improve accuracy, tourbillons are still included in some expensive modern watches as a novelty and demonstration of watchmaking virtuosity. The mechanism is usually exposed on the watch's face to show it off.
Estimate:
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Price:
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Category:
Horology (Clocks & watches): Watches - Wrist