Jaeger-LeCoultre Jaeger-LeCoultre - Q4138180 Master Control Chronograph Calendar Stainless Steel / Blue / Strap + Bracelet
Jaeger-LeCoultre Jaeger-LeCoultre - Q4138180 Master Control Chronograph Calendar Stainless Steel / Blue / Strap + Bracelet
Jaeger-LeCoultre Jaeger-LeCoultre - Q4138180 Master Control Chronograph Calendar Stainless Steel / Blue / Strap + Bracelet
Jaeger-LeCoultre

Master Control Chronograph Calendar Stainless Steel / Blue / Strap + Bracelet

REF. Q4138180

Case

MaterialStainless Steel
Diameter40 mm
ShapeRound
CrystalSapphire
Case backOpen
Water resistance50 m

Dial

ColourBlue
FinishSunburst
IndexesMixed Hands: Dauphine
HandsDauphine

Movement

Caliber759
Typeautomatic
Reserve65 h
Explore caliber→

In Context

At 40 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 12.05 mm it is a tall case, and it will catch on a cuff. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 50 m covers rain and hand-washing comfortably; it is not a watch to swim in.

The movement winds itself from the motion of your wrist. 65 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

Q4138180 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue sunburst dial with a stainless steel case. Beyond the time it carries a chronograph.

Inside: Caliber 759

Explore this caliber →

Self-winding movement combining a chronograph with a complete calendar and moon phase.

11 other watches in the library run the Jaeger-LeCoultre 759.

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