Escapement Model 'One-minute Flying Tourbillon Regulator with Spring Detent Chronometer Escapement' French. Made circa 1900. Very fine and very rare, working model of a Helwig one-minute flying tourbillon regulator with spring detent chronometer escapement, under a glass dome and with wooden base. | The Mondani Collection of Rolex Wristwatches / Important Collectors Wristwatches, Pocket Watches & Clocks

The Mondani Collection of Rolex Wrist...

Geneva, May 14, 2006

LOT 582

Escapement Model ?One-minute Flying Tourbillon Regulator with Spring Detent Chronometer Escapement? French. Made circa 1900. Very fine and very rare, working model of a Helwig one-minute flying tourbillon regulator with spring detent chronometer escapement, under a glass dome and with wooden base.

CHF 15,000 - 20,000

EUR 10,000 - 13,000 / USD 12,000 - 15,000

C. Turned ebonized wood, raised on turned bun feet, glass dome. M. Brass base plate, going barrel, brushed steel Helwig carriage, Earnshaw spring detent escapement, bimetallic compensation balance with peripheral temperature adjustment screws, blued steel Breguet balance spring. Dim. 20 x 13 cm. To be sold without reserve

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Grading System
Grade: AAA	Excellent
Case: 3	Good
Movement: 3*	Good Overhaul recommended, at buyer's expense

LOT 582

CHF 15,000 - 20,000

Grade: AAA

Excellent

Case: 3

Good

Movement: 3*

GoodOverhaul recommended, at buyer's expense

Good
Overhaul recommended, at buyer's expense