Swiss-made, Neuchâtelois, and bold
With its flying tourbillon appearing to float in mid-air, the Chapter 4 Infinity is a celebration of mechanical poetry. Freed from its upper bridge, the tourbillon rotates gracefully at 7 o’clock, compensating for the effects of gravity and enhancing chronometric precision. Its hypnotic motion reminds us that watchmaking, at its highest level, is not just engineering — it’s art.

At the heart of this hand-wound timepiece beats a movement developed with renowned watchmaker Olivier Mory in La Chaux-de-Fonds. With a 120-hour (5 day) power reserve and chronometer certification by Timelab – Observatoire Chronométrique de Genève, it embodies uncompromising performance and accuracy. Haute horlogerie, backed by scientific rigor.
Housed in a subtly convex 41mm polished 904L steel case with welded lugs, the watch features a stunning cosmic blue dial with sunray finishing. The harmonious layout includes a hammered moon phase at 1 o’clock, a small seconds subdial at 10, and a domed box sapphire crystal that reveals every detail of the movement beneath. Bold and elegant, it commands attention without ever shouting.

A Legacy Reinvented
Rooted in Neuchâtel’s centuries-old watchmaking heritage, BA111OD continues to disrupt with innovation, daring, and accessibility. The Chapter 4 Infinity Flying Tourbillon is not just a tribute to tradition — it’s a bold evolution of it. Designed for those who seek both meaning and mastery in their timepiece.