Important Collectors’ Wristwatches,Po...

New York, Mar 23, 2005

LOT 261

F. P. Journe, "Invenit et Fecit, "Remontoir d'Egalité, Tourbillon Souverain,? No. 21/99- 01T. Made in a limited edition of 99 examples in 2001. Very fine and rare, platinum gentleman's chronometer wrist-watch with visible one-minute tourbillon regulator and constant force remontoir, power-reserve indicator and a plat-inum F. P. Journe buckle. Accompanied by a wooden fitted box, accessories and certificate.

C. Two-body, solid, polished, transparent case back with 6screws, winding crown engine-turned with a knurled pattern,sapphire crystals. D. Brushed 18K gold ruthenium plated dialplate, at 3 "guilloché" matte silver ring dial with painted Arabicnumerals for the hours and minutes, apertures at 6 for theconstant force remontoir and at 9 for the tourbillon regulatorunder a polished steel bridge, up-and-down indication at 11.Blued steel "Journe" hands. M. Cal. 1498, ruthenium plated,"fausses côtes" decoration, 25 jewels, lateral lever escapementwith one-minute tourbillon regulator with "A"-shaped tourbillonframe and polished steel bridge, "Gyromax"-type balance with4 timing weights, self-compensating free-sprung Breguetbalance-spring with Phillips terminal curve.The constant-force remontoir with an 18K gold wheel seeksextreme precision by equalizing the mainspring's varying powersupply. A blade spring, controlled by a spinning vane, is armedonce a second by the force of the mainspring, feeding a steadyflow of power to the balance for a more constant rate.Dial, case and movement signed.Diam. 40 mm. Thickness: 9 mm.