Master Compressor Extreme LAB 2 One of the most innovative and sophisticated watches to ever come from Jaeger-LeCoultre is the Master Compressor Extreme LAB 2. It’s a follow-up from JLC’s impressive and iconic Extreme LAB watch, which was released in 2007 and contained a revolutionary mechanism that requires no lubrication during its lifetime. The LAB 2 is just as innovative and another landmark in craftsmanship. This new chronograph was created as a tribute to the Chronomètre Geophysic, which was released in 1958 (as was NASA) and a tool intended for scientists to be used in extreme conditions. The LAB 2 is also intended for high-stress environments.