Classic Tourbillon Perpetual Calendar Manufacture

Limited Edition 88 pieces

FC-975MC4H6
LIMITED EDITION

USD 21,995

Conceived and produced in our Swiss Manufacture
2 years warranty included
Free shipping (no hidden fee)
14 days Hassle-Free Returns

Please check for the delivery times estimates on this page.

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FC-975MC4H6

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

Polished stainless steel 3-parts case. Diameter of 42 mm. Convex sapphire crystal. See through case back. Water-resistant to 5 ATM.

Dial

Silvered color dial, Clous de Paris guilloché decoration, with printed roman numeral indexes. Hand polished black hands.

Strap

Black Alligator strap.

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.

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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.

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