Louis Moinet, which focuses on chronographs, has until now mainly used cutting-edge movements created by Concept, but this new model, limited to 20 pieces, is different from previous models in that it is equipped with an old movement.

[Article published in the July 2025 issue of Kronos Japan]
Louis Moinet "Speed of Sound" with Valjoux 88
Louis Moinet, the inventor of the world's first chronograph, was recognized by the Guinness Book of World Records. The Chronoguf is a key component of the Louis Moinet brand, and the majority of its watches feature exclusive movements developed in collaboration with movement supplier Concept, helping to enhance the brand's image today.
Now, the company has added a new, unique addition to its chronograph lineup. This is a limited edition model called "Speed of Sound." Its greatest feature is that it is equipped with a Valjoux 88 movement. This is deadstock that was passed down to the brand's CEO, Jean-Marie Schaller, from former Claude Meylan CEO Henri Verney, who is a close friend of the brand. This is evident in the Movement engraving. The technique of engraving circular patterns into plated bridges is a company specialty.

This model is limited to 20 pieces. The dial features a guilloched pattern designed by Jan von Känel, and three subdials are set with lunar and Altai meteorites. Manual winding (Cal. Valjoux 88). 17 jewels. 18,000 vph. Power reserve approximately 40 hours. Ti case (diameter 40.7mm, thickness 16.27mm). Water resistant to 3 bar. Limited to 20 pieces worldwide. 12.1 million yen (tax included).
The Speed of Sound is powered by the nostalgic Valjoux 88, but one of its highlights is the significant change to the dial layout. Originally, this movement featured hour, minute, and second hands, a chronograph, as well as a pointer date, day of the week, lunar calendar, and moon phase. However, the Speed of Sound simplified the Valjoux 88's dial, which could easily become cluttered, and instead used meteorites on the three subdials to emphasize the Louis Moinet signature. However, as befits a brand that draws inspiration from space, the calendar mechanism has been completely removed, but the moon phase remains, and a lunar meteorite is set on the moon disc. This playfulness is also part of Louis Moinet's charm.




