Celebrating the 70th anniversary of the Ladybird collection, Blancpain pays tribute to the 1956 Ladybird Bullet. This historic feminine timepiece was created by Blancpain, under the helm of CEO Betty Fiechter, the first woman to lead a Swiss watchmaking house. The Ladybird Bullet was a horological landmark featuring the world’s smallest round movement. Today’s Blancpain Lady B continues Blancpain’s mechanical miniaturization legacy. Faithful to its motto of never producing quartz timepieces, Blancpain Lady B is powered by the renowned in-house caliber 615, one of the smallest contemporary automatic mechanical movements with a round shape. Its spherical case measures 19 mm in diameter for a volume of just 2.9 cm³, and is paired with a double-tour calf leather strap, making it a true mechanical jewel. Available in stainless steel or 18K red gold, Blancpain Lady B opens a new chapter in the Ladybird collection.

Blancpain Lady B. An idea born in 1956.

Blancpain Lady B is not a reissue. It is the contemporary reinterpretation of a simple and radical idea born in 1956: to fit fine watchmaking into an object the size of a jewel. Faithful to the spirit of the Ladybird Bullet, it takes up its founding gesture without copying its lines.

This vision guided the entire development of the watch. Its architecture was built around Blancpain's automatic caliber 615, whose technical specifications were embraced from the very beginning of the project. The spherical case, sapphire crystal, polished rehaut, integrated pass-through strap, and water resistance were all developed in parallel to accommodate the movement within an unprecedented volume.

It resembles neither a traditional round watch nor a shaped watch. Its bracelet loop is integrated and passes directly through the case, with no lugs or visible attachment. Conceived in volume rather than surface, Blancpain Lady B is a mechanical bubble: a sculptural object to wear on the wrist.

Not a single quartz watch

Blancpain Lady B beats. And that changes everything. Blancpain has never produced a single quartz watch. Not during the watch crisis of the 1970s, when the industry shifted. Not today. Never. Since 1735, this choice is not a strategy. It is a philosophy. Every watch Blancpain creates is first and foremost a mechanical watch. Blancpain Lady B could, therefore, only be entirely mechanical.

The heart of Blancpain Lady B

The Manufacture caliber 615 that powers Blancpain Lady B measures 15.70 mm in diameter and 3.90 mm thick. It comprises 180 components, 29 rubies, and a power reserve of 38 hours. It beats at 3 Hz, or 21,600 vibrations per hour. Its plates are decorated with Côtes de Genève. The geometry of the case back has been completely conceived to accommodate the specific trajectory of this rotor. Introduced in 1995, the Manufacture caliber 615 has undergone continuous refinement, benefiting from technical advancements such as the introduction of a silicon balance spring. Decades of evolution have established it as a proven movement, renowned for its reliability and robustness.

A watch conceived in volume: 2.9 cm3

Where the traditional watch is defined by its diameter, Blancpain Lady B is defined by its volume. 2.9 cubic centimeters. An unusual measurement in watchmaking but perfectly suited to an object conceived in space rather than drawn on a plan. At 19 mm in diameter and 13.2 mm thick, it fits in the palm of your hand like a polished pebble. Its form naturally invites touch. Holding it in your palm is a sensory experience. Under your fingers, the oscillating mass comes into motion. A subtle vibration reminds you that a mechanical heart beats within.

Invisible complexity

Blancpain Lady B appears of absolute simplicity. Yet its case is one of the watch's most complex elements. Over thirty technical drawings were necessary to bring this sphere of just 2.9 cubic centimeters to life. To accommodate the movement, the case is constructed in two parts: the upper and lower sections. The back, slightly smaller than the bezel, remains invisible when the watch is viewed from above. The entire challenge lay in making this architecture disappear. The junction line between the bezel and the back is deliberately obscured through the interplay of volumes, light, and polishing. Achieving a perfectly continuous polish on a sphere this small is one of the major challenges of its manufacture. The result is that of a monolithic volume, as though carved from a single block, even though its construction is far more complex than it appears.

The strap challenge

Blancpain Lady B has no lugs. The strap passes directly through the case via an opening machined into the solid metal. This geometry of extreme fineness (10 × 1.6 mm) is executed as a single piece. The interior is micro-blasted so the leather glides with fluidity, while the sharp edges and knurling are entirely finished by hand with cabochon tools, according to the traditional techniques of fine watchmaking finishing. At this scale, the slightest gesture becomes decisive.

The finishing of the tiniest details

Available in stainless steel as in 18K red gold, the case is entirely finished by hand. Polished, satin-finished, and micro-blasted surfaces are executed successively on an already-assembled watch, each area carefully protected before working on the next. Even the engravings are not entrusted to laser alone. They are machined with mechanical cutters to achieve the depth, sharpness, and finishing quality required by the Manufacture. Blancpain Lady B reminds us that in watchmaking, complexity does not reside solely in complications. It can also lie in the perfection of an object of just 2.9 cubic centimeters.

An aesthetic of restraint

The dial is of absolute purity. Identical on stainless steel and 18K red gold versions, it is dressed in a warm beige opaline hue achieved through gold inlay. Deliberately free of setting, it lets the material and light speak. As always at Blancpain, the applied stick indices are crafted from gold. Measuring just 1.82 × 0.39 mm, they illustrate the remarkable level of miniaturization achieved by Blancpain Lady B. Polished on their upper face and sides, they capture light with subtlety. The two hands, deliberately sober, extend this same quest for purity and readability. Entirely polished, the rehaut acts as a mirror. Its reflections extend the case's curves and reinforce the impression of a sphere carved from the mass. Nothing is decorative. Nothing seeks attention. The dial shows only what the eye chooses to see: the time and the discreet Blancpain logo. The crown is signed with the initials JB, another nod to Blancpain's history.

A watch worn like a jewel

Each Blancpain Lady B comes with a double-tour calf leather strap, available in a choice of seven colors: white, beige, mocha, burgundy, blue, coral or purple. Closed with a pin buckle, it wraps naturally around the wrist and transforms Blancpain Lady B into a true jewel. It complements a tailored suit, disappears under the cuff of a white shirt, dialogues with a collection of bracelets and rings, or speaks for itself. Blancpain Lady B is available in stainless steel and 18K red gold.

B as in Bijou

Not simply a watch, nor simply a jewel. Like the Ladybird Bullet before it, Blancpain Lady B resists simple categorization. It is a watch. It is a jewel. It is a design object. And yet, beneath this apparent simplicity lies a conviction that has guided Blancpain since 1735: a watch must be, above all, a watch. Its value is felt in its restraint – expressed through a clean, unadorned case and a pristine dial that allow its pure proportions to shine. Blancpain Lady B reveals itself to the one who wears it and to those who know how to look. Beneath this apparent simplicity lies an in-house caliber decorated to the standards of fine watchmaking.

Above all, Blancpain Lady B reminds us of what Betty Fiechter understood long before these ideas became fashionable: that intelligence, simplicity, and beauty are not opposing virtues, but companions.