Master Grand Réveil

This watch combines two fascinating complications: a perpetual calendar and a mechanical alarm. It offers the choice between ring and vibrate mode for the alarm function, provides a four-digit year display and also shows the moon phases in both Northern and Southern hemispheres.

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Technical details
Focus

Technical details

Reference:: 163842A
Case material:: Stainless Steel
Strap/bracelet:: Alligator Leather

Jaeger-LeCoultre Calibre

909/1-440C

Movement

Automatic
Pieces number : 363
Vibrations per hour : 28800
Power-reserve : 45 Hours
Jewels : 36
Barrel : 1
Height : 3.30 mm

Functions

Hour - Minute
Seconds
Perpetual calendar
Red security zone
Date
Day
Month
Year
24-hour display
Alarm or reminder: ring or vibrate mode
Moon phases of the 2 hemispheres

Case

Stainless Steel
Water resistance : 5 bar

Dial

Silvered sunray-brushed, rhodium-plated hour-markers

Hands

Alpha

Strap/bracelet

Alligator Leather

Buckle

Double Folding Buckle 18.0 mm

Jaeger-LeCoultre Calibre 909/1-440C

Focus

Mechanical alarm striking on a gong, Master Grand Réveil

It owes its pure sound to an original mechanism: the hammer strikes the gong suspended in the lower part of the case, which serves as a resonance chamber.

Moon phases, Master Grand Réveil

On the dial, the moon phase is displayed differently according to the hemisphere and to the position North or South of the Equator.

Ring or vibrate, Master Grand Réveil

The extremely user-friendly alarm features an original characteristic: the choice between an alarm or vibrate mode.