Master Ultra Thin Réserve de Marche

ref. 1372501

Pure lines and a perfectly balanced dial create a beautiful stage-setting for one of the most emblematic mechanical complications. Two classic complications – a power-reserve indication and a pointer-type date display – are elegantly associated in this model: A sapphire crystal caseback reveals its automatic Calibre 938.

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Master Ultra Thin Réserve de Marche - Video

The Réserve de Marche, Master Ultra Thin Réserve de Marche

The Réserve de Marche, Master Ultra Thin Réserve de Marche

A complex system of differential gears ensures the power reserve is clearly indicated, and converts the energy accumulated by the Calibre Jaeger-LeCoultre 938 into units of time, self-winding mechanical movement.
A very fine case, Master Ultra Thin Réserve de Marche

A very fine case, Master Ultra Thin Réserve de Marche

Balanced proportions and a diameter of 39 mm bring new-found elegance to one of the most emblematic mechanical complications.

Technical details

Reference:
1372501
Case material:
Pink Gold
Strap/bracelet:
Alligator Leather
Jaeger-LeCoultre Calibre
  • 938
Movement
  • Automatic
  • Number of pieces : 273
  • Vibrations per hour : 28800
  • Power-reserve : 43 Hours
  • Jewels : 41
  • Barrel : 1
  • Height : 4.90 mm
Functions
  • Hour - Minute
  • Seconds
  • Power-reserve
  • Date
Case
  • Pink Gold
  • Water resistance : 5 bar
  • Diameter : 39mm
  • Thickness : 9.9mm
Dial
  • Eggshell beige, gilt hour-markers
Hands
  • Dauphines
Gem-setting
  • Diamond : ~80
  • ~0.57 carats
Strap/bracelet
  • Alligator Leather
Buckle
  • Pin Buckle 18.0 mm

Jaeger-LeCoultre Calibre 938