Q1238420
- Model
- Master Ultra Thin Date
- Case material
- Stainless Steel
- Case size
- 39mm
- Movement
- Automatic
- Calibre
- 899/1
- Dial colours
- Silver / White
- Market value band
- $6k – $45k
Q1238420 is a Jaeger-LeCoultre Master Ultra Thin Date reference.
The case is 39mm stainless steel.
It runs the 899/1, an automatic movement.
Catalogued dial colour: silver / white.
Sourced from scratch 2026-08-24 -- not on the current jaeger-lecoultre.com sitemap or Google index (an older 2019-era JLC URL scheme reference), so no live manufacturer page reachable this session. WatchBase confirms Steel, 39.00mm, self-winding Calibre 899/1, silver dial, date function. Independently, a bylined 2019 hands-on on watchilove.com (linking to the period JLC product URL naming this exact reference by number) confirms the same: Steel case, 39mm diameter, 7.8mm thick, silvered/white bombe sunray dial with date at 6, Calibre 899/1, 38h power reserve.
Before you ask.
What movement does the Jaeger-LeCoultre Q1238420 use?
The Jaeger-LeCoultre Q1238420 runs the 899/1, an automatic movement.
How do I check a Jaeger-LeCoultre Q1238420 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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