Maison · Geneva

A lineage of precision

1839 — 1908. Edouard Koehn, master watchmaker. A life devoted to the silent geometry of escapements and the integrity of fine mechanics.

Portrait of Edouard Koehn (1839–1908)

The Founder

Edouard Koehn, 1839 — 1908

A master watchmaker whose name became a byword for the most demanding complications of his era.

Ed. Koehn split-seconds chronograph pocket watch, circa 1900

Edouard Koehn began his career as clockmaker to the court of the Grand Duchy of Saxe-Weimar-Eisenach, born into an atmosphere of the highest horological standards.

He later joined Patek Philippe in Geneva, where his exacting eye for finishing and his architectural sense of movement design earned him a partnership in the Maison Patek, Philippe & Cie.

In 1891, he founded his own house. Among connoisseurs of haute horlogerie, the split-seconds chronograph — the most complicated of all chronographs — became the complication most closely associated with his name, a thread the Maison carries forward today.

Caliber EK CHR11

The caliber visible through the sapphire case back is exclusively developed by Concepto Watch Factory for Edouard Koehn — 282 components, 31 jewels, a 4 Hz frequency and a 48-hour reserve. The regulating organ is finished to chronometer “Top” grade and adjusted to five positions.

Caliber EK CHR11 — sapphire case back

Archives

From the Maison's archives

Split-seconds chronograph

Split-seconds chronograph

circa 1910

Split-seconds movement

Split-seconds movement

circa 1910

Minute repeater split-seconds chronograph

Minute repeater split-seconds chronograph

Movement Nr. 78383

Koehn-Ekegren minute repeater

Koehn-Ekegren minute repeater

for Caldwell USA, circa 1915

Atelier

“The hand that finishes a movement leaves nothing of itself — only the proof that nothing was rushed.”

— Maison Edouard Koehn