Jaeger-LeCoultre - Master Control - Q4148421
Master Control Calendar Stainless Steel / Silver
Main
Brand
Jaeger-LeCoultre
Family
Master Control
Reference
Q4148421
Name
Master Control Calendar Stainless Steel / Silver
Movement
Jaeger-LeCoultre caliber 866AA
Functions
Hours, Minutes, Small Seconds | Date, Day, Month | Moonphase
Produced
2025
Case
Glass
Sapphire
Back
Open
Shape
Round
Diameter
40mm
Height
10.95mm
Water Resistance
50M
Dial
Color
Silver
Finish
Sunburst
Indexes
Mixed
Hands
Dauphine
Description
The Jaeger-LeCoultre Master Control Calendar Q4148421 debuted in 2025. It features a stainless steel case measuring 40mm in diameter and 10.95mm in height, paired with a silvered grey sunray dial and dauphine-style hands. The calendar layout includes day and month apertures below 12 o’clock, a central date hand with a jumping mechanism that skips the 16th to avoid obscuring the moon phase aperture at 6 o’clock.
This watch is powered by the automatic 866AA, which offers hours, minutes, moon phase, full calendar, and central date with jumping hand. It has a power reserve of 70 hours and beats at a frequency of 28,800 vph. The movement is visible through a sapphire crystal case back. The watch is delivered with a light brown calfskin strap and an additional black alligator leather strap, both equipped with a stainless steel folding clasp.
