Biver AB Three-Hand: A Collector's Look at the Brand's First Steel Watch

Biver has built its first steel watch, the AB, and used the occasion to introduce a manual-winding movement and a 2N gold dial at the same time. It is the brand's smallest watch to date, priced at CHF 65,000 (about £59,000) before tax.

At BezelHold, we spend our days thinking about how collectors live with their watches, so the AB caught our eye for more than its spec sheet. Here is what is new, what it is like on paper, and what it means for anyone who wants to own a watch like this and keep it in good condition.

(Source: Hodinkee)

A new watch, not a steel version of an old one

Biver responded to collector requests for a steel watch by designing a new model rather than recasting an existing one. Until now the brand has worked only in precious metals, and its watches start above £60,000, so it makes sense that it listens closely to the people buying them.

The easy option would have been a steel Automatique. Instead, Biver treated steel as a fresh problem and built the AB around it. Having decided to change one thing, the brand changed several, which makes the AB a watch of several firsts:

• The first steel case in Biver's history
• The first manual-winding movement
• The first dial display in 2N gold

It is also the smallest watch Biver has made.

The case: 38mm of restrained steel

The AB's steel case measures 38mm in diameter and 9.8mm in thickness, a size that suits daily wear. Steel is tough enough to take ordinary knocks, which fits a watch meant to be worn rather than kept for occasions. Water resistance is 80m (8 bar).

The finishing is done by hand and stays deliberately simple: a mix of brushing and polishing, much like most steel watches. There are no elaborate engravings or showy artisanal techniques, so the case reads as a plain statement about steel as a watchmaking material. It comes on a steel bracelet, with a Bahia calf leather strap included as a second option.

The dial: onyx and pale gold

The dial is the more familiar part of the AB, since Biver has already made stone dials. Onyx is used here, with a black DLC finish and an onyx outer ring.

The layout is what is new. Central hour and minute hands sit alongside a small seconds subdial at 6 o'clock and a power reserve indicator at 12 o'clock, and Biver renders all of these in 2N gold for the first time. 2N is a gold alloy with more silver and less copper than traditional watchmaking alloys such as 5N rose gold, which gives it a pale champagne colour. Against the dark stone and the steel case and bracelet, that soft tone makes for an interesting contrast between refined and contemporary.

The movement: calibre JCB-004, five days of power

The AB runs on the new manual-winding calibre JCB-004. Its twin barrels give a power reserve of 120 hours, or five days, so the watch does not need winding every day. The power reserve indicator on the dial shows when it is due, and the movement beats at 21,600 vph (3 Hz).

A zero-reset mechanism makes setting the time easier: pulling out the crown sends the seconds hand back to zero.

Finishing was the hardest part of building a first manual movement. With no rotor covering the mechanics, every surface is on show. The mainplate and bridges are made from PD210, a gold alloy that does not tarnish and does not need plating, so the finishing should stay as it was applied. A single watchmaker assembles each watch from start to finish.

Price and specs

The AB costs CHF 65,000 before tax (about £59,150). As with every Biver, the price reflects hand-finishing and hand-assembly more than raw materials.

Specs per the Oracle of Time report, 16 October 2026.

A collector's take from BezelHold

The AB is a good reminder that a watch with this much hand-work deserves careful storage, whatever the case material. Three points stand out to us:

• Steel is tough, but fine finishing is not unmarkable. The brushing and polishing is applied by hand, so loose storage next to other watches or on a bare surface is the quickest way to dull it.
• A manual watch stops when you stop. With a five-day reserve, the AB will run down if it sits in a drawer for a week. Because it has no rotor, it does not need a winder; wind it when you take it out and set the time.
• The second strap needs a home too. The AB ships with both a steel bracelet and a calf leather strap, and the one not on your wrist should be kept clean and dry rather than loose in the box.

Conclusion: where the AB would live

The Biver AB shows how much care goes into a watch like this: a new steel case, a five-day manual calibre and a 2N gold dial, all finished by hand. Looking after one starts with where it sleeps at night, and that is where BezelHold Watch Boxes come in.

Each box keeps watches separated and scratch-free, with a place for every piece in the collection. Four sizes cover most collections:

The Dome, for example, has belted cushions that fit a wide range of wrist sizes, so a 38mm watch like the AB sits snugly, and a lock and key so that only the collector can open it. BezelHold ships worldwide at no charge and includes tariff duties and taxes for the USA, UK, EU and Australia, with 14-day returns.

Whether your collection holds one Biver or twelve watches, explore the full range at bezelhold.com.