1930s Jaeger DUO-PLAN | Edmond Jaeger Case Made in Paris | Black Glossy Dial | With Its Original Buckle

In the early 20th century, the partnership between Parisian watchmaker Edmond Jaeger and the Swiss manufacturer LeCoultre produced some of the most fascinating cross-border creations in horology. During the WWII era and beyond, strict French regulations on gold importation meant that many of these watches, while powered by Swiss movements, were cased entirely in France by local goldsmiths. The result was a uniquely charming hybrid: Swiss precision housed in Parisian elegance. These French-made cases stand apart with their distinct hallmarks, refined architecture, and unmistakable Art Deco flair.

At the heart of this example beats the legendary Jaeger-LeCoultre Duoplan movement. Introduced in the 1920s, the Duoplan was a revolutionary answer to the accuracy problems that plagued ultra-thin watches. Its clever two-level construction, separating the gear train from the mainspring, dramatically improved reliability and performance, setting a new standard for miniature horology. For collectors, it remains one of the most ingenious calibers ever produced by JLC.

But beyond its historical significance, this watch is simply a style icon. A sophisticated alternative to the classic tank, it radiates understated luxury with its elegant 18k yellow-gold French case and sleek manual-wind movement. Adding to its charm, it comes fitted with its original solid-gold buckle, an exceptionally rare detail that beautifully complements an already exquisite piece. A perfect blend of innovation, rarity, and Paris-meets-Swiss refinement, made for the collector who appreciates both history and impeccable taste.

CONDITION

This watch shows signs of gentle, genuine wear but remains in well-cared-for, honest condition. All hallmarks are crisp and fully legible, the dial is clean and retains its brightness, and the movement has just been serviced and is running flawlessly.

THE FINE PRINT

Maker: Jaeger-LeCoultre
Year: 1930s
Material: 18K Yellow Gold
Dimensions: 19.5 x 34mm
Crystal: Faceted Plexiglass
Lume: Non
Bracelet/Strap: New handmade  AtelierDelSur Strap
Box/Papers: Box

 -This watch was photographed on a 6.9 inch / 175mm wrist.