Inspired by the Perrin Frères signed pocket watch (Neuchatel) dating from the early 19th Century, and now owned by the EMSF, the Toric reprises the special sector time display function, but in a movement made entirely by the Parmigiani Fleurier manufacture.
Initially restored by its restoration workshop, the pocket watch had already revealed quite a lot of secrets. In complete synergy, the Parmigiani Fleurier restoration workshop and the department dedicated to grand complication development pooled their knowledge to develop this new movement.
The Calibre PF 321 features a Minute Repeater with cathedral chimes, plus an additional module dedicated to the sector time display. The time is displayed in a half-moon aperture, comprising 60-minute indexes with each quarter-hour sector in 5-minute subdivisions. The hour (1 to 12) has an Arabic numeral display, whose progress can be tracked from the first to sixtieth minute, before the next hour appears. The module incorporates a rotary system comprising three planetary gears with four arms, each end of which bears a number. Directly meshed with the hour wheel, the set of discs is driven via a cam system, which brings up the next hour as soon as the previous one has run its course.
On the dial side, a large bezel surrounding the perimeter of the double-knurled case and the central part of the watch acts as the main decoration. Made from white gold, and hand-engraved with geometric patterns, then covered with translucent enamel, it highlights the sector aperture, and therefore the hour and minute display. This portion of the dial, made from white mother-of-pearl, is applique indexed.
On the back of the calibre, the blued steel cathedral gongs come in the highly original form of a snake coiling round the movement, perfectly visible through the sapphire crystal case-back.
Made to mark the”Mechanical Wonders“exhibition in 2011 in New York, the Toric Minute Repeater model bears its individual number and the name of the exhibition engraved on the case-back, made from white gold.
Model: Toric Minute Repeater Watch with Sector Display
Sector display and minute repeater
45-hour power reserve
Calibre 12 ¼’’’– Ø 28 mm
Total thickness 8.55 mm
Frequency: 2.5 Hz – 18,000 vib/h. 33 jewels
Hand-bevelled main plate and bridges
Fluted cathedral chimes
Display of the hour and minutes per sector
Round 3-part case: Ø 45 mm. Thickness: 12.9 mm
Material: 18 ct white gold. Polished finish
Water resistance: 10 m
Hand engraved and knurled bezel
Shaped anti-reflective sapphire crystal
Crown: Ø 7 mm
Case-back with sapphire crystal
White mother-of-pearl, applique indices
Leather Hermes alligator strap with 18 carat white gold ardillon buckle, polished finish