Q4148450
- Model
- Master Control Calendar
- Case material
- Stainless Steel
- Case size
- 40mm
- Movement
- Automatic
- Calibre
- 866AA
- Dial colours
- Grey
- Market value band
- $6k – $45k
Q4148450 is a Jaeger-LeCoultre Master Control Calendar reference.
The case is 40mm stainless steel.
It runs the 866AA, an automatic movement.
Catalogued dial colour: grey.
2026-08-24 re-verify: re-fetched this exact URL; the '866AA' caliber designation is directly confirmed -- the page's primary MOVEMENT accordion shows plain 'Caliber 866', but a second, deeper 'IN-HOUSE CALIBRE' marketing section further down the same page explicitly names 'Jaeger-LeCoultre Caliber 866AA'. (This two-tier naming pattern -- short form in the spec accordion, full designation in the editorial section -- explains why several sibling Master Control references in this family show only the short form on their own pages; each was recorded with exactly what its own page stated rather than inferring the AA suffix across siblings.) Grey grained dial, limited edition of 500 pieces (first grained-dial Master Control). Triple calendar + moon phase; power reserve 70 hours; 28800 vph; 344 components, 34 jewels.
Before you ask.
What movement does the Jaeger-LeCoultre Q4148450 use?
The Jaeger-LeCoultre Q4148450 runs the 866AA, an automatic movement.
How do I check a Jaeger-LeCoultre Q4148450 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.
Checking a specific Jaeger-LeCoultre? Request access.