Limited Edition of 200 pieces. The watch is equipped with a completely new mechanical chronograph movement specially designed for the most extreme environments. This new timepiece combines maximum ergonomics with unmatched precision and reliability. Several innovations make this watch the ideal instrument for explorers of the extreme. Automatic movement with a 60-hour power reserve. JLC Caliber: 780 Movement: Automatic 18K pink gold case with a black skeletonized dial. Black alligator or rubber strap with tang/pin buckle. With today’s new Master Compressor Extreme LAB 2 Tribute to Geophysics, Jaeger-LeCoultre proves impressively that its watches are made for the extremes, a field requiring technical mastery, innovation spirit and high watchmaking precisely the DNA of the Master Compressor line.