With the goal of improving reliability, power reserve and long-term performance, Jaeger‑LeCoultre’s engineers have comprehensively revised and re-engineered its calibres. The improvements, include a silicon escapement, a redesigned barrel and various energy-saving enhancements.
The 40 millimetre Master Control case houses a movement with a power reserve of 70 hours. The Master Control collection features emblematic functions such as the classic date, the triple calendar complication, the legendary Geographic and for the first time a chronograph associated with a triple calendar display and a moon-phase.le calendar display and a moon-phase.
Like all Jaeger‑LeCoultre timepieces, the Master Control watches carry an 8-year warranty in addition to the 1,000 Hours Control certification.