Jaeger-LeCoultre - Men - 1900-1949

JAEGER LECOULTRE ‘Radium Militaire’,
Réf. JLC 540478

Années 1940 – Mouvement de Manufacture : Calibre LECOULTRE 478

Dimensions : 32 mm (hors couronne) x 40 mm / Entre-cornes : 16 mm

Watch very elegant, fully overhauled.
The watch runs perfectly.
The case is steel and 31 mm in diameter
The dial has not been cleaned, which gives it a remarkable patina.
The shipment includes the brown strap in black lizard leather shown in the photos.

Main Features

• The Case: 32 mm in diameter (excluding crown) with a total height of 40 mm from lug to lug, crafted from stainless steel with an lug width of 16 mm.

• The Dial: Designed as a true tool watch, its watchword is readability. It features oversized painted arabic numerals and luminous hands that owe their unique patina to the historical use of radium (luminescent material of the era).

• The Movement: Powered by the mythical In-house LeCoultre 478 calibre (often stamped P478), a hand-wound mechanical movement.

Focus on the LeCoultre 478 Calibre

This calibre, 12.5 lignes, is among the most famous and reliable manual-wind movements in 20th-century haute horlogerie. It was notably used by renowned Swiss maisons such as Vacheron Constantin.

• Frequency: 18,000 A/h (2.5 Hz).
• Jewels: Generally 15 to 17 jewels depending on the variant.
• Power reserve: Approximately 40 to 48 hours.
• Special features: It incorporates a large balance wheel with precision adjustment and a shock-protection system on certain versions."}