Master Grand Réveil

ref. 163842A

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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Focus

Mechanical alarm striking on a gong, Master Grand Réveil

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

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

Ring or vibrate, Master Grand Réveil

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

Technical details

Reference:
163842A
Case material:
Stainless Steel
Strap/bracelet:
Alligator Leather
Jaeger-LeCoultre Calibre
  • 909/1-440C
Movement
  • Automatic
  • Number of pieces : 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
  • Diameter : 43mm
  • Thickness : 15.8mm
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