5C Factory proudly presents a refined aesthetic masterpiece from the Jaeger-LeCoultre Master Series — model 1558420, featuring a high-end market version with a true small seconds display at 6 o’clock.
Key Details
Case Design
Case size: 39mm × 12mm, balancing elegance and wrist presence. The dial features a subtly domed “box-shaped” curvature, repeatedly refined through adjustments to achieve a visual harmony close to the original design, faithfully recreating its horological essence while preserving a distinctive character.
Functional Layout
12 o’clock: dual apertures displaying weekday and month
6 o’clock: sub-dial with small seconds and moonphase indication
Perimeter: date hand display
All functional elements are designed to closely replicate the original configuration, ensuring both aesthetic balance and functional consistency.
Clasp Engineering
The folding clasp is designed with a seamless structure, ensuring no visible gaps when viewed from the side. Its curvature matches the original specifications, offering a more natural and comfortable wrist fit.
Movement
Powered by a 5C Factory customized modified Jaeger-LeCoultre-style 866/1 automatic movement, engineered for stable operation and reliable timekeeping performance.
A refined expression of mechanical complexity beneath a minimalist exterior—where elegance meets intricate craftsmanship.




