F.P. Journe Chronometre à Resonance

Brand F.P. Journe, Geneva Model “Invenit et Fecit”, “Chronomètre à résonnance” “Souveraine Collection” Year circa 2000-2005 Calibre rhodium plated brass, 36 jewels Case No. 158 / 01 R Material/s platinum Bracelet black leather FPJ strap Buckle platinum FPJ pin-buckle Dimensions Ø 38.5 mm. 44.7 x 38.5 mm. Thickness 9.1 mm. Weight 73.2 gr. (approx.) Signature dial, case and movement Accessories original fitted box, Certificate of origin, a set of watchmaking tools in a leather case (design for FPJ by Luca Callegari, Milan, including a wood magnifying-glass, a wood tool for removing the strap, a cleaning cloth by Keller Trading) *An additional 0.9% surcharge applies to the hammer price for local delivery only. F.P. Journe “Invenit et Fecit”, chronometer with resonance controlled twin independent movements, two-time zones, power-reserve indication, rhodium plated brass calibre, 18-carat whitened silver guilloché dials; “Chronomètre à résonnance”; platinum The world’s first wristwatch to use the natural physical phenomenon of resonance without mechanical transmission to optimise the precision of the timepiece Platinum, manual-winding, round-shaped, gentleman’s chronometer wristwatch, with two offset dials, each with subsidiary seconds at 6 o’clock, and two horological complications: • Twin independent movements (winding and setting by the crown at 12 o’clock) • 40-hour power-reserve indication (sector at 11 o’clock) Case: two-piece, polished, water-resistant with sapphire-crystal case-back screwed by six screws, concave lugs, convex bezel, polished winding-crown engine-turned with “cordes de Marseille” (knurled) pattern. Dial: silvered gold (18-carat) false-plate; whitened silver colour guilloché (engine-turned) off-centre gold (18-carat) dials, with black painted radiating Arabic numerals; blued steel “FPJ” hands. Movement: calibre with 36 jewels, rhodium-plated brass, with twin independent complete trains set on a single plate, twin straight-line lever escapements, twin beryllium four-arm balances with four adjustable timing weights, shock absorbers, self-compensating free-sprung Invar balance springs. One of the escapements is mounted on a small platform pivoting around the second wheel by means of rack and pinion to adjust the distance between the two balances in order finding the most efficient position for resonance synchronization. The crown at 4 o’clock synchronizes both seconds hands.