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Jaeger-LeCoultre

Jaeger-LeCoultre Master Control Calendar Q4148480

The Jaeger-LeCoultre Master Control Calendar (reference Q4148480) is a 40 mm stainless steel watch with a blue dial. It runs on the automatic caliber 866AA with a 70-hour power reserve and is water resistant to 50 m. It was introduced in 2020 and is still in production.

Specifications

Case

Reference
Q4148480
Collection
Master Control
Case size
40 mm
Thickness
10.95 mm
Case material
Stainless steel
Case shape
Round
Crystal
Sapphire
Water resistance
50 m

Dial and bezel

Dial
Blue

Movement

Movement
Automatic
Caliber
866AA
Power reserve
70 hours
Frequency
28,800 vph
Functions
Day-date, Moon phase, Small seconds

Production

Production
2020 – today (current)

How it compares within the Master Control family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
Q4148480 (This watch)40 mmStainless steelBlue866AA2020–
Q401842040 mmStainless steelSilver sunburst899AC2020–
Q411842040 mmStainless steelSilver956AA2020–
Q413818040 mmStainless steelBlue7592020–
Q413848040 mmStainless steelBlue7592020–
Q414812040 mmStainless steelSilver866AA2020–
Q415812038 mmStainless steelGrey-blue gradient8992026–
Q4168120—Stainless steelGrey-blue gradient—2026–
Q4178180—Stainless steelGrey-blue gradient—2026–

About the Master Control family

The Master Control was introduced in 1992, when Jaeger-LeCoultre began testing each watch for 1,000 hours before it left the manufacture, a test that gave the line its name. It is a classic round watch with a simple dial and a sector-style layout on some versions.

The catalog includes time-and-date models with caliber 899, chronographs with caliber 759, calendar and geographic models, in stainless steel and pink gold. Dealers identify the function and generation from the reference and check the strap or bracelet and the papers.

Quick answers

What size is the Jaeger-LeCoultre Master Control Calendar Q4148480?
The Jaeger-LeCoultre Master Control Calendar Q4148480 has a 40 mm case, 10.95 mm thick.
What movement does the Jaeger-LeCoultre Master Control Calendar Q4148480 use?
It uses the automatic caliber 866AA, with a 70-hour power reserve.
How water resistant is the Jaeger-LeCoultre Master Control Calendar Q4148480?
It is water resistant to 50 metres.
Is the Jaeger-LeCoultre Master Control Calendar Q4148480 still in production?
Yes, it is a current reference.
When did the Jaeger-LeCoultre Master Control Calendar Q4148480 come out?
It was introduced in 2020.
What is the Jaeger-LeCoultre Master Control Calendar Q4148480 made of?
The case is stainless steel.

Catalog facts checked September 2026.