US Limited Edition Legacy Moonphase Chronograph

LEGACY MOONPHASE CHRONOGRAPH

PURPLE USA LIMITED EDITION

Edouard Koehn unveils an exceptionally rare interpretation of its Legacy Moonphase Chronograph, produced in an ultra-limited edition of just ten pieces, created exclusively for the United States. Headquartered in La Chaux-de-Fonds, the independent Swiss manufacture continues to express its cosmopolitan vision through a timepiece that harmoniously blends heritage, mechanical sophistication, and contemporary elegance.

Distinguished by a captivating gradient purple dial, this exclusive edition exudes refined character. The dial is complemented by an anthracite Louisiana alligator leather strap with a matching purple lining, a discreet detail underscoring the watch’s exclusivity and artisanal craftsmanship.

Drawing inspiration from the brand’s historical creations, Edouard Koehn brings the moon phase complication back to the forefront. Seamlessly integrated within the classic architecture of the Legacy collection, the moon phase and date indications coexist elegantly with the chronograph function.

At the heart of the Legacy Moonphase Chronograph beats a self-winding mechanical chronograph movement, developed exclusively in collaboration with Manufacture Concepto. Paying tribute to master watchmaker Edouard Koehn (1839–1908), the movement features an instantaneous 30-minute counter at 3 o’clock, a blue central chronograph seconds hand, and a refined subdial at 6 o’clock displaying the date by hand with the moon phase at its center. Equipped with a chronometer-grade regulating organ, the caliber delivers exceptional precision and a 60-hour power reserve.

The moon phase display reflects the lunar cycle of 29.5 days, depicted on a rotating disk mounted on a 59-tooth wheel advancing one step every two days, faithfully representing the lunar phases.

Housed in a 40mm stainless steel case water-resistant to 50 meters, the Legacy Moonphase Chronograph features applied Breguet numerals, leaf-shaped hands, and a vertical satin-finished gradient purple dial that bridges classical elegance with modern refinement. Each of the ten individually numbered pieces stands as a rare expression of Edouard Koehn’s horological expertise and enduring legacy.

About Edouard Koehn

Edouard Koehn was a distinguished 19th-century watchmaker who devoted more than three decades to Patek Philippe in Geneva, working at the very pinnacle of haute horlogerie. There, he played a key role as director and shareholder, notably contributing to the development of the manufacture through numerous trips to North America. In 1891, Koehn founded his own manufacture, where he continued to pursue uncompromising standards, producing watches renowned for meticulous finishing and sophisticated complications. Today, his spirit lives on, honoring Koehn’s dedication to craftsmanship, mechanical excellence, and timeless design while reinterpreting these values for a contemporary audience.

·       Chronograph movement: Automatic base Concepto Manufacture, exclusively modified for Edouard Koehn
28,800 vibrations per hour (4Hz), 25 jewels, 60-hour power reserve, 261 components
Chronometer-grade regulating organ
Functions: Hours, minutes, small seconds at 9 o’clock, date by hand & moon phase indicator at 6 o’clock
Chronograph: 60 seconds by central hand, instantaneous 30-minute counter at 3 o’clock
Case: 316L stainless steel, 40.0 mm diameter
Water resistance: 50 meters
Thickness: 12.90mm (without sapphire crystal), 14.10mm (with domed “glass-box” sapphire crystal)
Crystal: Double-sided anti-reflective domed sapphire (“glass-box” type)
Case back: Sapphire crystal
Limited editions: 10 pieces
Dial: Purple gradient
Strap: Louisiana alligator leather in grey or purple
Clasp: Stainless steel folding clasp, optional pin buckle available