FREDERIQUE CONSTANT MANUFACTURE TOURBILLON PERPETUAL CALENDAR 42mm FC-975S4H9 Skeleton
FREDERIQUE CONSTANT MANUFACTURE TOURBILLON PERPETUAL CALENDAR 42mm FC-975S4H9 Skeleton

MANUFACTURE Current collection

TOURBILLON PERPETUAL CALENDAR

FC-975S4H9

Official retail price

€29,995

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Gender Men
Movement type Self-Winding
CASE MATERIAL Rose Gold
GLASS Saphir
STRAP LOCK SYSTEM Fold Clasp
WATER RESISTANCE 50m
LIMITED EDITION 30
CASE BACK Saphir
POWER RESERVE 38h
CASE DIAMETER 42.00mm
STRAP MATERIAL Leather
WARRANTY 2 years
Perpetual Calendar

The perpetual calendar complication displays the day, date and month, but it requires less adjustment than an annual calendar. This complication knows the number of days in each month but it also knows the year so that it will automatically adjust for leap year. The next time a perpetual calendar will have to be adjusted is in the year 2100.

Tourbillon

The tourbillon system was made to compensate the Earth’s gravitational force by mounting the escapement in a revolving cage. It gives the watch a better accuracy. This complication is known as one of the most difficult to make.

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