F.P. JOURNE PLATINUM TOURBILLON SOUVERAIN
F.P. Journe, "Invenit et Fecit", Tourbillon Souverain à Remontoir d'Egalité avec Seconde Morte, No. 048-04TN. Made circa 2000.
Very fine and rare, platinum Chronometer wristwatch with visible one-minute tourbillion regulator, constant force remontoir
with dead-seconds, 42-hour power-reserve indicator and a platinum F.P. Journe buckle. Accompanied by the original fitted
wooden box, Certificate of Authenticity and Instruction manual.
Two-body, solid, polished, concave lugs, transparent case back with 6 screws, winding crown engine-turned with a "cordes
de Marseille" pattern, sapphire crystals.
Subsidiary guilloche silver dials with painted Arabic numerals for the hours and minutes and offset seconds secured 18K
gold plate, aperture for the tourbillon regulator under a polished steel bridge at 9, power reserve indication at 12. Blued steel
Cal. 1403 in 18K pink gold, fausses cotes decoration, 26 jewels, lateral lever escapement with one-minute tourbillon
regulator with "A"-shaped tourbillon frame and polished steel bridge, monometallic 4-arm balance with 4 timing weights,
self-compensating free-sprung Breguet balance spring with Phillips terminal curve, constant-force remontoir with 18K
gold wheel, equalizing the mainspring's varying power supply. A blade spring, controlled by a spinning vane, is armed once
a second by the force of the mainspring, feeding a steady flow of power to the balance for a more constant rate and at the
same time controlling the progression of the dead-seconds hand.