Basically, this new Jaeger-LeCoultre Master Ultra-Thin Squelette is the openworked and enameled edition the Master Ultra-Thin 1907.
The new watch measures only 3.6mm thick (according to the page here), even thinner than the Altiplano 900p, which measures 3.65mm thick. They managed to do this while also giving the watch a skeletonized movement and a exhibition caseback. The movement is the Calibre 849SQ, which measures the exact same 1.85mm as the Calibre 849. You can find the movement's specs. by following the link above. Each edition of the Jaeger-LeCoultre Master Ultra-Thin Squelette will be available in a limited edition of 100 pieces. Rose gold will have a retail price of 56,000 Euros, while the white gold will close 58,500 Euros. This translates to $60,500 and $63,500, respectively.
Jake Fogarty is the founder and writer for most of what you will read here. If you want to contact me you can visit the contact and advertising page.