The present Tortue shaped wristwatch is one of Cartier’s most avant-garde and modernist designs and hitherto unknown. It is thanks to the small diameter of calibre 426 that this design can be created by holding the movement by glass disks, seemingly floating within the case. Jaeger LeCoultre and Cartier used this clever system on a variety of wristwatches, dress watches and desk timepieces. This white gold example however is certainly one of the most elegant and exclusive designs. Preserved in excellent condition, it is not only a superb collector’s watch but also an eye-catching conversation piece when worn on formal occasions.