Classic Tourbillon Perpetual Calendar Manufacture

Limited Edition 30 pieces

FC-975S4H9
18K Rose Gold

USD 32,995

Conceived and produced in our Swiss Manufacture
2 years warranty included

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FC-975S4H9

Movement

FC-975 Manufacture caliber, automatic tourbillon & perpetual calendar. Perlage & Côtes de Genève decoration on movement. 33 jewels, 38 hours power reserve, 28’800 alt/h. Silicium escapement wheel and anchor.

Case

18K Rose gold polished 3-parts case. Diameter of 42 mm. Convex sapphire crystal. See through case back. Water-resistant to 5 ATM.

Dial

Skeleton silvered color dial. Hand polished black hands.

Strap

Brown Alligator strap.
Classic Tourbillon Perpetual Calendar Manufacture (FC-975S4H9)

Frederique Constant strikes again and is proud to present its novelty: a Perpetual Calendar Tourbillon Manufacture edited in a limited series of 30 pieces which embodies the brand’s visionary spirit, determination and passion for watchmaking knowhow.

The Art of Precision

Frederique Constant’s Perpetual Calendar Tourbillon Manufacture contributes to the quest for ultimate precision. The primary function being to counterbalance the errors due to the effect of the Earth’s gravity on a movement in a vertical position. The titular mechanism of the timepieces is the new automatic FC-975 in-house movement.

QP news 1
QP news 3

A breathtaking mechanism

This grand complication bears simultaneously: a silicium escapement wheel and anchor, a smart weight balance wheel, and a Tourbillon cage. These timepieces are impressive in horological terms as the Tourbillon has been developed in an industrialized process to the last detail. It’s the accumulation of watchmaking knowledge over the years which allowed this timepiece to emerge. The Perpetual Calendar Manufacture Tourbillon guarantees an exceptional level of performance and the highest standards of craftsmanship distinguished by the features mentioned above.

Perpetual Calendar Tourbillon perfectly balanced cage

Frederique Constant patented the perfectly balanced cage composed of 80 components all produced with a precision of 1-2 micron (0.001-0.002 mm) by the CNC machine in the Manufacture’s ateliers. In order to achieve the highest degree of precision, small weights are added in the Tourbillon’s cage to obtain a perfect balance. When the Tourbillon is constructed, the balance in the cage is slightly unequal, as the escapement wheel and anchor are decentered. Frederique Constant added a “smart screw” system on the outer edge of the Tourbillon to equalize the weight and deliver a perfect balance in the cage. This results in a more stable amplitude and rate.

QP news 2

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