In 2009, Jaeger Lecoultre issued a series of Master Tourbillon, limited in 20 pieces. But it was also available in yellow gold and rose gold, also in a limited edition of 20 pieces. The case is big, 43mm. I could see three of them. Here is one of them, Eu...
It would give the owner some travel desires.. I agree on your points on the architecture of the movement. Definitely not something that we see everyday: thanks for giving us a close look