Jaeger-LeCoultre Master Control Date

Automatic, 39 mm, Calibre 899, 32 Jewels, 5 ATM, Stainless Steel / Alligator Leather This classically pure case houses exceptional performances. The new ceramic ball bearings of the automatic mechanism and the variable inertia balance further enhance the reliability of its automatic movement.

Self-winding movement, Master Control

The new ceramic ball bearings of the automatic mechanism and the variable inertia balance further enhance its reliability.

Sapphire case-back, Master Control

Its sapphire case-back reveals an automatic movement with a 22-carat oscillating weight segment.

Variable inertia balance wheel

The use of a variable inertia balance guarantees the stable rate of a Jaeger-LeCoultre watch. To ensure optimal shock-resistance and exceptional reliability, the balance-bridge is fitted with two rests and the balance-spring is laser-welded to the stud and collet.