The Frederique Constant Perpetual Calendar Tourbillon Manufacture FC-975N4H6 is a superb Swiss Made watch with an in-house Frederique Constant FC-975 movement. This is an incredible tourbillon movement with a perpetual calendar with date, month and day hands. This marvel of engineering also accounts for for leap years. You can keep wearing this watch day after day, year after year, without even having to readjust the date.

Let's talk about the tourbillon, originally designed to negate the effects of gravity, ensuring a higher accuracy in mechanical watches. These days it is no longer strictly necessary, but that has never stopped a tourbillon from being an impressive addition to an already stunning piece of engineering. The tourbillon also acts as a second hand for this watch as it rotates exactly once per minute. Movements with these sorts of complications are more commonly found in watches that are several times the price of this Frederique Constant. The movement is beautifully decorated with Perlage & Côtes de Genève.

Aside from the technical aspects it's also a very beautiful, stylish and classy timepiece that has tremendous wrist presence. 

This amazing watch is a Limited Edition, there are only 88 pieces available worldwide. The watch has the serial number on the caseback, the tourbillon is numbered individually as well.

Stunning, horological pedigree and quality - what more can you wish for?