Biver AB Steel Rises To The Collectors’ Challenge

Biver’s first steel watch brings a new hand-wound calibre, a gold and onyx dial, and more than 120 hours of power reserve to a distinctly personal vision of contemporary haute horlogerie.

Sometimes the most interesting watches begin with a simple question. For Biver, it was a challenge from its collectors: could the independent Swiss maison create a watch in steel without compromising the philosophy that defines its approach to fine watchmaking?

The answer is the new Biver AB, a timepiece that marks several important firsts for the young brand. It is the first Biver watch to be made in steel, the first to feature a manually wound movement, and, at 38mm in diameter, the smallest watch the maison has produced to date. Yet its significance goes beyond the specifications. The AB represents a willingness to start again, rethink familiar conventions and pursue a seemingly straightforward idea with the same intensity usually reserved for the most complicated creations.

“The easy thing would have been to take the Automatique and make it in steel.” Pierre Biver, Co-Founder and CEO

The team began with a blank sheet, developing a new case, a new movement and new dial techniques. It was, by his own account, the slower and harder route, but one that allowed the watch to establish its own identity.

A different kind of Biver

Since its arrival, Biver has built its identity around the meeting of traditional watchmaking expertise and a contemporary creative outlook. Its earlier creations have explored the minute repeater, tourbillon and the art of simplifying watchmaking to its essential elements. The AB takes this philosophy in a different direction.

Steel is a familiar material in the watch industry, but its introduction here carries particular significance. Biver has traditionally explored precious metals and elaborate craftsmanship, so the decision to create a steel watch required more than a change of case material. It called for a reconsideration of the entire proposition.

The result is a watch designed to be worn rather than simply admired from a distance. Measuring 38mm across and just 9.8mm thick, the steel case offers considered proportions, while water resistance to 80 metres adds a practical dimension. It is delivered on a steel Biver bracelet, with an additional Bahia calf leather strap and steel buckle.

There is an appealing contrast at work. The case suggests everyday utility, while the finishing and dial construction belong firmly to the world of high-end independent watchmaking. This is not an attempt to make haute horlogerie less demanding; it is an attempt to make it more wearable.

Gold, onyx and a new way of displaying time

The dial provides the AB with much of its character. Biver combines 2N yellow gold with a black onyx outer ring, creating a striking contrast between the warmth of the metal and the depth of the stone. The minutes track is applied directly to the dial using a metallisation technique, while the yellow-gold hands are satin-finished and hand-bevelled, with four interior angles.

It is a restrained composition, but one that rewards closer inspection. With a watch displaying only hours, minutes and seconds, every element must justify its presence. The proportions, the treatment of the surfaces and the relationship between the materials become central to the overall design.

At six o’clock, the small seconds display incorporates Biver’s signature zero-reset mechanism, first introduced in the Automatique. Pulling the crown causes the seconds hand to snap back to zero, allowing precise synchronisation.

At twelve o’clock, a power-reserve indication introduces another distinctive detail. Rather than relying on a conventional pointer or subdial, the remaining energy is shown by a golden pin moving along an arc. It provides a clear indication of the movement’s state while remaining integrated into the dial’s uncluttered layout.

Calibre JCB-004: the pleasure of winding

Inside the AB is the manually wound Calibre JCB-004, developed specifically for this watch. Its architecture features two barrels and delivers approximately 120 hours of power reserve from a full wind.

The movement measures 29.6mm in diameter and 4.6mm in thickness, operates at a frequency of 21,600 vibrations per hour and contains 32 jewels. These figures tell only part of the story, however. The calibre has been conceived as a complete expression of Biver’s approach to finishing, with every surface hand-decorated.

The mainplate and bridges are made from PD210, a palladium-rich white-gold alloy that does not tarnish and requires no plating. According to Technical Director François Perez, the material leaves little room for error: the work of the decorator remains fully visible through the display caseback.

The mainplate alone receives several sizes of circular graining and requires two full days of finishing. The bridges introduce another challenge, with sandblasting creating a delicate surface that demands particular care during handling. Developing the appropriate grain and technique required months of experimentation by head decorator Khaled.

Such details are easy to overlook when a watch is considered solely in terms of its functions. Yet they are central to the AB’s character. Its display is deliberately simple; the complexity lies in the execution.

The people behind the watch

There is also a human story behind the AB. The project began with the expectations of Biver’s collectors and evolved into a demanding exercise for the entire team. A new material, movement architecture and dial technique brought their own difficulties, while the development process coincided with the birth of Pierre Biver’s second child.

Every AB is built from start to finish by a single watchmaker, without assembly-line hand-offs. That individual responsibility sits within a broader collaborative effort involving engineers, decorators, quality controllers and logistics specialists. The finished watch is therefore both a personal undertaking and a collective achievement.

This emphasis on people is particularly relevant to independent watchmaking, where the distinction between a brand’s philosophy and the individuals responsible for expressing it is often unusually close. The AB makes that relationship tangible: the watch may be compact and visually understated, but the effort behind it is anything but modest.

A new chapter for Biver

Priced at CHF 68,000, excluding local taxes and duties, the Biver AB enters a competitive segment of the luxury watch market. Its appeal will rest less on the novelty of steel itself than on the way the maison has approached it: a purpose-built hand-wound calibre, carefully considered proportions, a distinctive gold and onyx dial, and an unusually intensive approach to movement decoration.

For collectors, the most compelling aspect may be the decision not to take the easy route. Biver could have adapted an existing watch to meet the request for steel. Instead, it treated the challenge as an opportunity to develop something with its own identity.

The AB is a reminder that simplicity in watchmaking is rarely simple to achieve. Three hands, a power-reserve indication and a steel case might appear to be a straightforward brief. In practice, the pursuit of the right proportions, materials and finishes demanded a complete rethink.

Perhaps that is what makes this latest Biver so interesting. It brings the values of traditional haute horlogerie into a more practical format without abandoning the craftsmanship that gives the watch its purpose. For a brand still writing the early chapters of its story, the AB is a confident step into new territory.

Technical Specifications

• Model: Biver AB
• Case: Steel, 38mm diameter, 9.8mm thick
• Water resistance: 80 metres / 8 ATM
• Dial: 2N yellow gold with black DLC and an onyx outer ring
• Functions: Hours, minutes, small seconds, power-reserve indicated on the dial via golden pin
• Movement: Hand-wound Calibre JCB-004, double barrel, zero-reset seconds
• Frequency: 21,600 vibrations per hour
• Power reserve: Approximately 120 hours
• Jewels: 32
• Bracelet and strap: Steel bracelet, additional Bahia calf leather strap with steel buckle
• Warranty: Four years
• Price: CHF 68,000, excluding local taxes and duties

For more information please visit Biver