Q4148421
- Model
- Master Control Calendar
- Case material
- Stainless Steel
- Case size
- 40mm
- Movement
- Automatic
- Calibre
- 866
- Dial colours
- Silver / White
- Market value band
- $6k – $45k
Q4148421 is a Jaeger-LeCoultre Master Control Calendar reference.
The case is 40mm stainless steel.
It runs the 866, an automatic movement.
Catalogued dial colour: silver / white.
2026-08-24 re-verify: re-fetched this exact URL; MOVEMENT accordion now exposes full content. Case 40 x 10.95mm; silvered grey sunray-brushed dial. Caliber 866, movement thickness 6.15mm, 28800vph, power reserve 70 hours; functions moon phase/hour-minute/petite seconde/central-jumping-date calendar.
Before you ask.
What movement does the Jaeger-LeCoultre Q4148421 use?
The Jaeger-LeCoultre Q4148421 runs the 866, an automatic movement.
How do I check a Jaeger-LeCoultre Q4148421 with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.
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