Launched in 1992, the Master Control collection was first to benefit from the 1000 Hours Control certification, to which it owes its name. It returns to spearhead Jaeger-LeCoultre's new releases this year as the Master Control Chronograph Calendar. The case, in either Grand Rose gold or steel, houses the new in-house Calibre 759. It powers a bi-compax chronograph coupled with the triple calendar displays of day, month and date plus moon phases. This is the first time Jaeger-LeCoultre has put all these complications into one watch… a reminder that time measurement goes hand-in-hand with astronomy.