Important Modern & Vintage Timepieces
Hong Kong, Mar 03, 2021
LOT 54
F.P. Journe
“Invenit et Fecit”, chronometer with resonance controlled twin independent movements, two-time zones, power reserve, 18K pink gold movement; “Chronomètre à résonnance”; platinum
HKD 570,000 - 1,130,000
CHF 65,000 - 130,000 / EUR 60,000 - 120,000 / USD 73,000 - 146,000
Sold: HKD 1,225,000
Platinum, manual-winding, tonneau-shaped, chronometer gentleman’s wristwatch, with sapphire-crystal case-back screwed by six screws, winding crown engine-turned with “cordes de Marseille” (knurled) pattern, twin silver colour 18K gold offset dials, each with subsidiary seconds at 6, 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)
18K pink gold movement, calibre 1499-3, with twin independent complete trains set on a single plate, 36 jewels, 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.