Calibre 1403 https://www.fpjourne.com/en/collection/tokyo-boutique-anniversaire-series/tourbillon-souverain-anniversaire-tokyo FP Journe https://www.fpjourne.com/en FP Journe
Polished Titanium Anniversary case, crown in 18K 6N Gold
Diameter: 40 mm
Overall height: 9.9 mm
Dial: ruthenium on Gold and whitened guilloché Silver
Hands: 5N gilt Steel
Technical Specifications
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Polished Titanium Anniversary case, crown in 18K 6N Gold
Diameter: 40 mm
Overall height: 9.9 mm
Dial: ruthenium on Gold and whitened guilloché Silver
Hands: 5N gilt Steel
Polished Titanium Anniversary case, crown in 18K 6N Gold
Diameter: 40 mm
Overall height: 9.9 mm
Dial: ruthenium on Gold and whitened guilloché Silver
Hands: 5N gilt Steel
Technical Specifications
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Calibre 1403 https://www.fpjourne.com/en/collection/tokyo-boutique-anniversaire-series/tourbillon-souverain-anniversaire-tokyo FP Journe https://www.fpjourne.com/en FP Journe
About
LIMITED SERIES NUMBERED 1 TO 20
LIMITED SERIES FOR THE 3RD ANNIVERSARY OF THE BOUTIQUE F.P.JOURNE TOKYO
THE BRAND CONCEPT OF F.P.JOURNE BOUTIQUES AROUND THE WORLD IS ENRICHED BY A NUMBER OF SPECIAL SERVICES AND UNIQUE COLLECTIONS OF LIMITED TIMEPIECES RESERVED EXCLUSIVELY FOR ITS CLIENTS. THE F.P.JOURNE ANNIVERSARY TIMEPIECES EDITION WAS CREATED TO HONOUR THE CLIENTS OF THE BRAND’S BOUTIQUES.
THE THIRD F.P.JOURNE BOUTIQUE ANNIVERSARY WAS COMMEMORATED BY A SPECIAL EDITION OF THE TOURBILLON SOUVERAIN WITH REMONTOIR D’ÉGALITÉ AND DEADBEAT SECONDS. THIS LIMITED EDITION OF 20 PIECES, FIVE FOR EACH BOUTIQUE IN TOKYO, HONG KONG, GENEVA AND BOCA RATON, FEATURED THE NOW CLASSICAL ANNIVERSARY POLISHED TITANIUM CASE WITH THE RUTHENIUM-COATED GOLD DIAL. THE TOURBILLON COMPLICATION IMPROVES THE GENERAL RUNNING OF A WATCH BUT THE ADDITION OF A CONSTANT-FORCE DEVICE SUPPLIES THE TOURBILLON WITH THE SAME ENERGY FOR A FULL 42 HOURS. THIS TOURBILLON SOUVERAIN ALSO FEATURES THE PATENTED DEADBEAT SECOND DEVICE, A UNIQUE FEATURE ON A CONTEMPORARY WRISTWATCH WHICH PROVIDES A MORE ACCURATE READ-OFF OF TIME.
THIS TOKYO ANNIVERSARY EDITION IN TITANIUM IS NO LONGER AVAILABLE, BUT CLIENTS CAN discover THE CURRENT VERSION OF THE TOURBILLON SOUVERAIN IN PLATINUM OR IN 18K 6N GOLD, IN ALL F.P.JOURNE BOUTIQUES.
Technical Specifications
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
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Aiguille d'Or 2004
-
About
THIS MODEL WAS PRODUCED IN 2007 AND 2008.
LIMITED SERIES NUMBERED 1 TO 20
LIMITED SERIES FOR THE 3RD ANNIVERSARY OF THE BOUTIQUE F.P.JOURNE TOKYO
THE BRAND CONCEPT OF F.P.JOURNE BOUTIQUES AROUND THE WORLD IS ENRICHED BY A NUMBER OF SPECIAL SERVICES AND UNIQUE COLLECTIONS OF LIMITED TIMEPIECES RESERVED EXCLUSIVELY FOR ITS CLIENTS. THE F.P.JOURNE ANNIVERSARY TIMEPIECES EDITION WAS CREATED TO HONOUR THE CLIENTS OF THE BRAND’S BOUTIQUES.
THE THIRD F.P.JOURNE BOUTIQUE ANNIVERSARY WAS COMMEMORATED BY A SPECIAL EDITION OF THE TOURBILLON SOUVERAIN WITH REMONTOIR D’ÉGALITÉ AND DEADBEAT SECONDS. THIS LIMITED EDITION OF 20 PIECES, FIVE FOR EACH BOUTIQUE IN TOKYO, HONG KONG, GENEVA AND BOCA RATON, FEATURED THE NOW CLASSICAL ANNIVERSARY POLISHED TITANIUM CASE WITH THE RUTHENIUM-COATED GOLD DIAL. THE TOURBILLON COMPLICATION IMPROVES THE GENERAL RUNNING OF A WATCH BUT THE ADDITION OF A CONSTANT-FORCE DEVICE SUPPLIES THE TOURBILLON WITH THE SAME ENERGY FOR A FULL 42 HOURS. THIS TOURBILLON SOUVERAIN ALSO FEATURES THE PATENTED DEADBEAT SECOND DEVICE, A UNIQUE FEATURE ON A CONTEMPORARY WRISTWATCH WHICH PROVIDES A MORE ACCURATE READ-OFF OF TIME.
THIS TOKYO ANNIVERSARY EDITION IN TITANIUM IS NO LONGER AVAILABLE, BUT CLIENTS CAN discover THE CURRENT VERSION OF THE TOURBILLON SOUVERAIN IN PLATINUM OR IN 18K 6N GOLD, IN ALL F.P.JOURNE BOUTIQUES. -
Technical description
Technical Specifications
Movement :- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Indications :Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00Dimensions :- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
Characteristics :15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crownFeatures :Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2Frequency :21'600 VPH 3 Hz
Balance :- Inertia : 11.00 mgcm2
- Angle of lift : 52°
Amplitude :0 h dial up: 280°
24 h dial up: 280°Power reserve :42 ± 2 hours
Number of jewels :26
Finishes :High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded endsNumber of components :Movement: 193
Cased on leather strap: 218Movement :- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Indications :Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00Dimensions :- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
Characteristics :15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crownFeatures :Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2Frequency :21'600 VPH 3 Hz
Balance :- Inertia : 11.00 mgcm2
- Angle of lift : 52°
Amplitude :0 h dial up: 280°
24 h dial up: 280°Power reserve :42 ± 2 hours
Number of jewels :26
Finishes :High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded endsNumber of components :Movement: 193
Cased on leather strap: 218
At the heart of the movementAt the heart of the movementBrevet - EP 1 760 544 A1 | EP 03405772.9![fpjourne]()
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.Brevet - EP 1 760 544 A1 | EP 03405772.9
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Technical Specifications
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
- Manually winding : 20 turns of the crown
- Movement in 18K rose Gold : 26 jewels
Hours and minutes à 3h00
Sub-seconds at 6h00
Power reserve at 12h00
- Overall dimensions : 32.40 mm
- Casing-up diameter of mvt : 32.00 mm
- Overall Height : 6.60 mm
- Height of winding stem : 2.53 mm
- Diameter of stem thread : S1.20 mm
- Case diameter : 38 mm / 40.00 mm
- Overall case thickness : 9.9 mm
15 tooth escape wheel
90° Anchor fork
Balance with 4 inertia weights
Flat Anachron balance spring with Breguet overcoil
Pinned stud
Free-sprung
Spring pinned to collet
2 position winding crown
Tourbillon with constant force and dead seconds
Manual winding
Time adjustment by crown in position 2
21'600 VPH 3 Hz
- Inertia : 11.00 mgcm2
- Angle of lift : 52°
0 h dial up: 280°
24 h dial up: 280°
42 ± 2 hours
26
High quality
Circular stripes on the bridges
Geneva waves on baseplate
Screw heads polished and bevelled
Pegs with polished rounded ends
Movement: 193
Cased on leather strap: 218
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.
Technical description
The remontoire (constant force device) comprises a secondary wheel (1) assembled on a lever (2), which swivels concentrically to the cage (3) of the tourbillon. This lever stops the principal wheel which carries the second hand (4) and transmits the energy of the barrel, whereas the auxiliary spring (5) (or equalizing spring) gives its energy to the escapement. (6) This then allows the secondary wheel to release once per second, and with repetition, the auxiliary spring is re-fuelled by the principal wheel.
What is a remontoire ?
In the Toubillon Souverain, the remontoire - a constant force device - can be compared to a dam that controls the flow of water and provides constant energy to the blades of a turbine. In effect, the remontoire regulates the power to the escapement to attain greater stability in rate. The adjustable inertia weights make it possible to optimize the amplitude of oscillation; the four-armed balance beats at a frequency of 21'600 v/h.