Name: Jaeger-LeCoultre Master Control Q4148120 40 mm Grey Dial
Brand: Jaeger-LeCoultre
SKU: Q4148120
Availability: InStock

Specifications

A concise reference view of the case, dial, bracelet and movement details buyers compare first.

Diameter40 mm

MaterialStainless steel

DialGrey

CalibreJaeger-LeCoultre Calibre 866

Water resistance5 bar / 50 m

Case6 fields

Diameter	40 mm
Thickness	11 mm
Material	Stainless steel
Caseback	See-Through
Water resistance	5 bar / 50 m
Water Resistance Category	Swim

Movement7 fields

Calibre	Jaeger-LeCoultre Calibre 866
Calibre family	866 calendar platform
Movement	automatic
Power reserve	70 hours
Frequency	28,800 vph
Jewels	34 jewels
In House Movement	Yes

Dial and bracelet7 fields

Dial	Grey
Dial finish	Sunburst
Markers	Applied
Display	Analog
Date	Yes
Calendar	Simple
Clasp	Deployant

Functions and complications3 fields

Complications	Date, Day, Hour, Minute, Month, Moon phase, Seconds, Moonphase
Complication count	8
Moon phase	Yes

Reference details5 fields

Gender	Men's
Production status	Active
Origin	Switzerland
Warranty	8 years
Size category	Large

Price history

Recent price movement

Current medianSAR 63,824

Lowest medianSAR 56,883

Highest medianSAR 63,824

Median delivered estimate Lowest tracked offer

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Tracking 8 daily market snapshots since July 2026. The solid line shows the median delivered estimate and the dashed line tracks the lowest available offer.

Overview

About this reference

The Master Control Q4148120 gives a 40 mm round stainless-steel case a 10.95 mm profile and a grey sunburst dial with applied markers. Its indications extend beyond the time to the date, day, month, moon phase and seconds, creating a full calendar composition without changing the collection's disciplined proportions. A deployant clasp and see-through caseback sharpen the reference's formal character, while 50 metres of water resistance provides the stated practical limit.

Calibre 866 is an in-house automatic movement with a 70-hour reserve, 344 parts and 34 jewels. It is 6.15 mm high, beats at 4 Hz and uses a silicon escapement with a full rotor. Its functions include the day, date, month, moon phase, jumping date and small seconds. Fine finishing can be seen through the display back, while the cased watch undergoes Jaeger-LeCoultre's 1000 Hours Control.

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