SIHH 2013…

This is one of two “mystery” watches unveiled by Cartier this week in Geneva — the Rotonde de Cartier Mysterious Double Tourbillon.  As the name implies, it is a double tourbillon, with two axes of rotation. The first tourbillon rotates at a rate of one revolution per minute.  The tourbillon carriage (crafted of titanium) has no visible connection to the rest of the movement – hence “mysterieuse”.  As with other watches of a similar nature, the tourbillon is mounted on a sapphire disc which itself makes one revolution every five minutes.   Thus the the tourbillon rotates once a minute while simultaneously travelling around the dial once every five minutes.  Impressive. Great High-res pics and more info, below.

Rotonde de Cartier Mysterious Double Tourbillon, calibre 9454 MC

45mm platinum case, manual wind calibre 9454 MC (Geneva Seal, double mystery tourbillon, 52 hrs power reserve)

Cartier calibre 9454 MC

21,600 bph, Geneva Seal, double mystery tourbillon, 52 hrs power reserve

Laziz Hamani © Cartier 2013

The second is the Rotonde de Cartier Mysterious Double Tourbillon with Geneva Seal. As the name implies, it is a double tourbillon, with two axes of rotation. The first is the one revolution per minute of the tourbillon carriage