Bianchet’s UltraFino Tonneau has quickly become the young independent’s most versatile platform, moving from titanium into sapphire crystal, carbon fibre and full ceramic executions.
The newest version shifts the tone again with black high-tech ceramic and a slim 18K rose gold element running beneath the bezel, a small detail that changes the watch’s entire character.
It’s still an ultra-thin, openworked automatic tourbillon, but this edition leans more graphic, more formal and a little warmer than the earlier monochrome ceramic models.
At a glance
- Bianchet has introduced the UltraFino Tonneau Black Ceramic with an 18K rose gold case detail.
- The watch uses the brand’s UT01 automatic flying tourbillon calibre, a 3.85mm-thick movement with a 60-hour power reserve.
- It is priced at CHF 80,500 excluding taxes and comes with both an integrated ceramic bracelet and a black rubber strap.
Black ceramic with a rose gold Golden Line
The case keeps the UltraFino Tonneau’s familiar proportions at 40mm wide, 47.5mm long and 8.9mm thick.
Those numbers matter because this isn’t simply a skeletonised sports watch with a tourbillon inside, but a genuinely slim one with an integrated bracelet architecture.
The tonneau-shaped case is made from black high-tech ceramic, with satin-brushed surfaces and polished bevels used to give the dark material some light play.
The integrated bracelet follows the same finishing language, which helps the watch read as a single continuous object rather than a head attached to a bracelet.
The key change is the Golden Line beneath the bezel.
On other UltraFino Tonneau models, this separate component has typically been rubber, but here it’s rendered in 18K rose gold, creating a fine warm border between the black ceramic upper and lower case elements.
It’s a restrained use of gold, but not a shy one.
The contrast is clean and architectural, more like a highlighted construction line than a decorative flourish.
An open movement instead of a conventional dial
There’s no traditional dial on the UltraFino Tonneau Black Ceramic.
Instead, the movement is presented as the visual centre of the watch, visible through sapphire crystal at the front and back.
The titanium movement architecture is treated with a black PVD finish, keeping the mechanical display in line with the case and bracelet.
Rose-gold-coloured hands and the matching winding rotor pick up the tone of the case detail, while the hands use luminescent material for practical low-light legibility.
The result is a watch that’s technically exposed without looking overly busy from a distance.
Its strongest visual idea is simple, with black ceramic, blackened mechanics and narrow rose gold accents doing most of the work.
The UT01 automatic flying tourbillon
Inside is Bianchet’s proprietary UT01 calibre, the automatic movement that helped define the UltraFino concept.
It measures just 3.85mm thick and is built around a Grade 5 titanium architecture with skeletonised, hand-finished bridges.
The layout gives visual balance to the display, with a suspended barrel at 12 o’clock and a one-minute flying tourbillon positioned at 6 o’clock.
The flying tourbillon cage measures 2.66mm high, underlining the thinness-driven engineering brief behind the watch.
The calibre runs at 21,600 vibrations per hour, uses 29 jewels and offers a 60-hour power reserve.
Bianchet also rates the movement for shock resistance up to 5,000G, a notable claim for an ultra-thin openworked tourbillon intended to sit in a sporty integrated case.
Details & Specifications
| Brand | Bianchet |
|---|---|
| Model | UltraFino Tonneau Black Ceramic and Gold |
| Case size | 40mm x 47.5mm x 8.9mm |
| Case material | Black high-tech ceramic with 18K rose gold seam beneath the bezel |
| Crystal | Sapphire front and back |
| Water resistance | 50 metres |
| Display | Openworked movement display with rose-gold-coloured luminous hands |
| Movement | Bianchet UT01 automatic flying tourbillon |
| Movement thickness | 3.85mm |
| Movement architecture | Grade 5 titanium with black PVD finish |
| Frequency | 21,600 vibrations per hour |
| Jewels | 29 |
| Power reserve | 60 hours |
| Tourbillon | One-minute flying tourbillon with 2.66mm-high cage |
| Shock resistance | Up to 5,000G |
| Bracelet | Integrated black high-tech ceramic bracelet with satin-brushed and polished finishing |
| Additional strap | Black rubber strap with quick-release system |
| Price | CHF 80,500 excluding taxes |
The UltraFino Tonneau Black Ceramic and Gold is most compelling for collectors who like independent watchmaking when it pushes beyond traditional precious-metal cues.
It keeps Bianchet’s technical identity intact, but the rose gold line gives the black ceramic case a more tailored edge than the earlier full-ceramic executions.
