Bianchet’s Rotondo UltraFino was already a notable shift for the young Swiss independent, translating its sculptural design language into a compact round watch.
The new Rose Gold edition changes the mood without softening the engineering brief.
It keeps the ultra-thin automatic flying tourbillon, openworked dial and 100-metre sports-watch credentials, but wraps them in a warmer, more overtly luxurious case.

At a glance
- Bianchet has introduced an 18k rose gold version of the Rotondo UltraFino.
- The watch measures 39.5mm by 8.9mm and uses the proprietary UR01 automatic flying tourbillon calibre.
- Prices are CHF 85,500 on rubber straps and CHF 119,500 on the integrated rose gold bracelet, excluding taxes.
Rose gold changes the Rotondo’s character
The Rotondo UltraFino began as Bianchet’s round alternative to its better-known tonneau-shaped watches, and the rose gold version gives that idea a more formal edge.
At 39.5mm across, it remains compact by contemporary high-complication sports-watch standards, while the 8.9mm thickness keeps the profile genuinely slim for an automatic flying tourbillon.
The case combines satin-brushed surfaces with polished bevels, a contrast that helps the faceted geometry read clearly despite the softer warmth of the metal.

A black rubber gasket sits beneath the bezel as a visible design element, giving the watch a sharper technical frame against the rose gold case.
A precious case with sports-watch resilience
Bianchet hasn’t treated rose gold as an excuse to make the Rotondo delicate.
The watch is water-resistant to 100 metres and shock-resistant to 5,000G, preserving the more practical character established by the titanium and carbon versions.

That mix is central to the appeal here, because the watch sits somewhere between dressy complication and integrated sports watch rather than committing fully to either lane.
The flowing case profile and angular surfaces follow the brand’s “Form Above All” design approach, where geometry isn’t decorative afterthought but the organising principle of the watch.
The UR01 remains the visual centre
The dial is openworked, so the movement provides nearly all of the architecture on view.

The barrel is positioned at 12 o’clock, visually balancing the one-minute flying tourbillon at 6 o’clock.
Applied hour markers and faceted luminous hands keep the display readable without covering too much of the skeletonised construction.
Inside is Bianchet’s proprietary UR01 self-winding calibre, a 3.85mm-thick movement running at 21,600 vibrations per hour with a 60-hour power reserve.

For this rose gold version, the titanium bridges receive a black PVD treatment, creating a darker mechanical stage for the rose gold oscillating weight.
Bracelet, straps and positioning
Buyers can choose the full integrated 18k rose gold bracelet configuration, which also includes an additional black rubber strap.
There’s also a rubber-strap option supplied with black and white straps for a more technical, less jewellery-led expression of the same watch.

The quick-release system allows the strap or bracelet to be changed in seconds, a useful feature for a watch that deliberately moves between precious-metal presence and sports-watch utility.
Pricing starts at CHF 85,500 excluding taxes on the rubber strap configuration, rising to CHF 119,500 excluding taxes on the integrated rose gold bracelet.
Details & Specifications
| Brand | Bianchet |
|---|---|
| Model | Rotondo UltraFino Rose Gold |
| Case size | 39.5mm diameter, 8.9mm thick |
| Case material | 18k rose gold |
| Crystal | Sapphire front and back |
| Water resistance | 100 metres |
| Shock resistance | 5,000G |
| Dial | Openworked with applied hour markers and luminous hands |
| Movement | Proprietary UR01 self-winding calibre |
| Complication | One-minute flying tourbillon |
| Movement height | 3.85mm |
| Frequency | 21,600 vibrations per hour |
| Power reserve | 60 hours |
| Components | 225 parts, including 29 jewels |
| Tourbillon cage | Titanium |
| Finishing detail | Black PVD-treated titanium bridges |
| Functions | Hours, minutes and small seconds on the tourbillon |
| Bracelet and straps | Integrated 18k rose gold bracelet with additional black rubber strap, or black and white rubber strap set |
| Strap system | Quick-release system |
| Price on rubber straps | CHF 85,500 excluding taxes |
| Price on rose gold bracelet | CHF 119,500 excluding taxes |
The Rotondo UltraFino Rose Gold is likely to speak to collectors who want an independent flying tourbillon with real daily-wear intent, but prefer their technical watchmaking with a richer, more classical metal presence.









