After making a strong impression during this spring’s watch fairs with its first chronometer-certified flying tourbillon featuring a moon phase and small seconds, BA111OD now takes a new step in its exploration of haute horlogerie. Fueled by the enthusiastic response to that complex debut and a growing demand from collectors drawn to a more minimalist and contemporary approach, the Neuchâtel-based Maison now unveils a radically refined interpretation: the Chapter 4 Onyx Flying Tourbillon. Stripped of all superfluous elements, this exceptional timepiece embodies a design philosophy rooted in absolute purity — where the noble materiality of black onyx meets the lightness of a suspended tourbillon. A creation sculpted between shadow and light, where every detail celebrates the quiet beauty of essentials, mastered.
The Essence, Elevated
Free from all visual distraction, the Chapter 4 Onyx Flying Tourbillon represents the natural evolution of the Chapter 4.7 Onyx Tourbillon, which will soon be retired from the collection. Even more refined, it draws the eye to a single point of gravity: the flying tourbillon. With its upper bridge removed, the mechanism exists in a state of hypnotic graphic purity, performing a graceful mechanical ballet. Its finely crafted openworked cage embodies the very essence of Swiss horological savoir-faire and reflects BA111OD’s ongoing pursuit of visual and technical lightness.
Here, emptiness becomes a space for contemplation — sculpted to reveal only what is essential. This stripped- back aesthetic finds its anchor in a dial cut from natural black onyx, simply polished. Its surface, deep and dense, captures light only to absorb it — evoking an infinite night sky, silent yet full of presence.
A symbol of strength and elegance, this precious stone gives the watch a unique aura — standing at the crossroads of timelessness and modernity.
Sculptural Balance and Play of Contrasts
The polished 904L stainless steel case, with its concave profile and subtly recessed bezel, asserts a distinctly modern design. Its 41mm diameter is perfectly proportioned — offering a confident presence on the wrist, without ever tipping into excess. Topped with an anti-reflective box-shaped sapphire crystal, this refined architecture reveals the hand-wound mechanical movement at the heart of the watch, animated by the suspended elegance of the flying tourbillon.
Like a true horological work of art, the Chapter 4 Onyx Flying Tourbillon plays with opposites: depth and matter, the mineral density of onyx and the airy lightness of motion. It is an architectural composition, perfectly mastered — where every line, every curve orchestrates a dance of reflections between shadow and light.
Minimalism as a Manifesto
Conceived as a horological work of art, this piece embraces a rare form of radical purity within its segment. No ostentatious logo — only a discreet tone-on-tone signature. No superfluous effects — only the raw strength of a movement laid bare.
Making the Exceptional Accessible
Developed in collaboration with master watchmaker Olivier Mory, this new Chapter reflects BA111OD’s ongoing mission: making the exceptional accessible.“We wanted a watch that speaks to the senses before it speaks to reason. Something rare, yet readable. Silent, yet powerful. Chapter 4 is a tribute to gravity, purity and the obsession with beauty.” Explains Thomas Baillod, founder of the brand.
The Commitment of a Maison, the Soul of a Region
True to its Neuchâtel roots, BA111OD expresses a contemporary vision of haute horlogerie — one that fuses innovation, local craftsmanship, and creative daring. With the Chapter 4 Onyx Flying Tourbillon, the Maison fully embodies this philosophy: a creation that unites the heritage of horological artistry with an aesthetic that is both minimalist and timeless.
