All Master Compressor models are equipped with revolutionary compression keys – a patented system which assures absolute security and reliability. The insulating system consists of a cone and four O-rings: giving it a half turn seals the case as securely as a submarine’s hatch.

Illustrated model:
18 ct. rose gold. Self-winding movement with chronograph and GMT function.

For further information, please also visit the Jaeger-LeCoultre website.