Jaeger-LeCoultre · Family: Master Control
The Jaeger-LeCoultre Master Control Date Q4018420 is the 40mm steel dress watch through which the Le Sentier manufacture opens its in-house range: automatic movement, date at 3 o'clock, and a minimalist dial with no added complications. Cazador does not yet have sufficient market data (fewer than 5 recorded sales, July 2026) to set a reliable price range.
Insufficient data
0 of 5 price observations needed to show a reliable range
No publishable price data: Cazador has fewer than 5 recorded transactions (n<5) for this reference as of July 2026.
The Master Control family was launched [UNVERIFIED: exact launch date not confirmed] as the entry point into Le Sentier's manufacture range. The Q4018420 embodies that philosophy at its purest: a 40mm steel case, a minimalist dial, and an automatic calibre from the 899 family [UNVERIFIED: exact calibre number]. What sets any Master Control apart is an invisible process: before leaving the factory, every watch undergoes Jaeger-LeCoultre's '1000 Hours Control', an internal battery of tests covering precision, water resistance, shock resistance and magnetic-field resistance [UNVERIFIED: exact methodology].
We can't give a reliable figure yet: Cazador has fewer than 5 recorded transactions for this reference.
It uses an in-house JLC automatic movement from the 899 calibre family. The exact calibre number isn't confirmed [UNVERIFIED].
Master Control prioritizes robustness and everyday versatility, while Master Ultra Thin focuses on ultra-thin cases and movements.
It's the internal testing protocol JLC applies to the entire Master Control range before sale.
It's estimated at around 40 hours, though this figure isn't confirmed specifically for the Q4018420 [UNVERIFIED].
It's one of the most commonly cited candidates: a versatile 40mm steel case and an in-house movement.
The source documentation behind this entry doesn't specify the water-resistance depth of this model [UNVERIFIED].