Jaeger-leCoultre Master Compressor Extreme World User Manual page 16

Interchangeable strap system
The base of your watch case is fitted with an integrated interchangeability system
allowing the strap to be changed easily. It consists of a push-button which shifts
part of the space between the horns to release the strap's spring bar from its
housing in the lugs.
Removing the strap sections from the case
- Hold the back of the watch case between the thumb and forefi nger of one
hand (A).
- Hold the strap section between the thumb and forefinger of your other hand (B).
- With the thumb of hand B, push the button firmly against the case, and while
maintaining the pressure pull the strap section toward you to remove it.
- Proceed in the same way for the other section.
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Closed position
Position when the
strap is released