F.P. Journe, Chronometre a resonnance Invenit et Fecit Souveraine Collection, (c.) 2001

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.

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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.

Elegance exceptional E
Rarity extremely rare RRR
Case excellent 9 / 10
Dial excellent 9 / 10
Movement excellent 9 / 10
Expert opinion excellent