Q1278420
- Model
- Master Ultra Thin Small Seconds
- Case material
- Stainless Steel
- Case size
- 38.5mm
- Movement
- Automatic
- Calibre
- 896
- Dial colours
- Silver / White
- Market value band
- $6k – $45k
Q1278420 is a Jaeger-LeCoultre Master Ultra Thin Small Seconds reference.
The case is 38.5mm stainless steel.
It runs the 896, an automatic movement.
Catalogued dial colour: silver / white.
Sourced from scratch 2026-08-24 -- no live jaeger-lecoultre.com page found (absent from the current sitemap). WatchBase and Hourstriker's watch database independently agree on Stainless Steel case, self-winding Calibre 896, silver sunburst dial, small-seconds subdial at 6, introduced SIHH 2014. Case size: Hourstriker states 39mm, WatchBase 38.50mm (matching the pink-gold sibling Q1272501 exactly) -- recorded as 38.5mm to match the sibling and WatchBase's more precise figure; flagged here since the two sources disagree by half a millimetre. WatchBase's own page also carries a stray 'Gem-Set' bezel field contradicted by both its own description text and Hourstriker's explicit 'Bezel Materials: Stainless Steel' -- no bezelMaterial/diamond field recorded given that contradiction.
Before you ask.
What movement does the Jaeger-LeCoultre Q1278420 use?
The Jaeger-LeCoultre Q1278420 runs the 896, an automatic movement.
How do I check a Jaeger-LeCoultre Q1278420 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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