The Bianchet Rotondo UltraFino Diamond is a 39.5 mm round automatic flying-tourbillon watch with a grade 5 titanium case and integrated bracelet, framed by a white-gold bezel set with baguette diamonds. Bianchet lists it at 92,500 CHF excluding taxes and requires a 10% deposit to reserve one. Its 9.0 mm case houses the 3.85 mm self-winding Calibre UR01, while a 10 ATM water-resistance rating and stated 5,000 G shock resistance make the watch more practical than its high-jewellery appearance suggests.
What the Rotondo UltraFino Diamond is
This is the diamond-set expression of Bianchet’s round Rotondo UltraFino collection. The visual contrast is deliberate: a light, angular titanium case and integrated bracelet surround an open-worked movement, while the white-gold bezel introduces the decorative language of high jewellery. Bianchet describes the collection as combining a clean bezel and sharp edges with the intricacy of an open-worked movement.
As an Amazon Associate I earn from qualifying purchases.
The case and bracelet are grade 5 titanium. The bezel is white gold with baguette-cut diamonds. A vulcanized natural-rubber strap is also supplied, and both bracelet and strap use a quick-release system so the owner can change them without replacing the watch’s integrated look.
Specifications at a glance
| Specification | Rotondo UltraFino Diamond |
|---|---|
| Case diameter | 39.5 mm (Bianchet, 2026) |
| Case thickness | 9.0 mm (Bianchet, 2026) |
| Case and bracelet | Grade 5 titanium |
| Bezel | White gold set with baguette diamonds |
| Movement | Calibre UR01, self-winding flying tourbillon |
| Movement thickness | 3.85 mm (Bianchet, 2026) |
| Tourbillon | 60-second flying tourbillon |
| Components and jewels | 225 components; 29 jewels |
| Frequency | 3 Hz |
| Power reserve | 60 hours, with a stated tolerance of ±5% |
| Water resistance | 10 ATM |
| Shock resistance | 5,000 G, as stated by Bianchet |
| Warranty | Five-year international warranty from delivery for manufacturing and mechanical defects |
| List price | 92,500 CHF, excluding taxes |
Inside Calibre UR01
A thin automatic flying tourbillon
Calibre UR01 is an in-house automatic movement that Bianchet says was developed and finished entirely within its manufacture. At 3.85 mm thick, it is unusually slim for a self-winding tourbillon architecture. The 60-second flying tourbillon is supported from one side rather than held by a conventional upper bridge, leaving the regulating assembly visually exposed through the open-worked dial.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How the mechanism is arranged
Bianchet specifies a lateral gear-train layout, a flying barrel, a unidirectional automatic winding system and a flying flat tourbillon. The movement runs at 3 Hz and contains 225 components and 29 jewels. These are manufacturer specifications, not independent laboratory performance results.
Finishing and reserve
Bianchet states that each calibre receives 30 hours of hand finishing. The automatic movement stores 60 hours of power, subject to the brand’s stated ±5% tolerance. In practical terms, a fully wound watch can remain off the wrist for roughly two days before stopping, depending on the actual reserve of that individual movement.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Wearing the 39.5 mm case
The 39.5 mm diameter sits in a versatile range for a round luxury watch, while the 9.0 mm thickness keeps the profile relatively restrained despite the tourbillon and automatic winding system. Titanium reduces weight compared with a precious-metal case, and the integrated bracelet continues that low-mass construction from the lugs through the clasp.
Recommended Free Tools
The supplied rubber strap changes the wearing character without requiring a separate deployment system. Its quick-release fitting, shared with the bracelet, is intended for interchangeability rather than frequent tool-based servicing.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Water and shock resistance
A 10 ATM rating corresponds to the manufacturer’s stated pressure resistance for the completed watch. It offers a meaningful everyday margin against rain, hand washing and surface water, but it should not be treated as a guarantee for diving or high-impact water sports. The 5,000 G shock-resistance figure is also a stated specification; it does not make a delicate tourbillon immune to drops, hard impacts or magnetism.
Price, reservation and availability
Bianchet lists the Rotondo UltraFino Diamond at 92,500 CHF before taxes. The reservation process requires a 10% deposit, which is 9,250 CHF against the listed price before any applicable tax or local charges. The watch is presented as a reservable product rather than a mass-market model, so prospective owners should confirm availability, delivery timing, deposit terms and final taxes directly with Bianchet.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Each watch’s authenticity is recorded on the Polygon public blockchain, according to the official product information. Buyers should retain the delivery documentation and warranty paperwork because the five-year international warranty begins at delivery and covers manufacturing and mechanical defects.
Free tools Windows power users keep installed
One-click scans. No signup required.
What makes this tourbillon different
- High-jewellery framing: the baguette-diamond white-gold bezel is paired with, rather than substituted for, a technical titanium construction.
- Thin automatic architecture: the 3.85 mm UR01 combines self-winding operation with a flying tourbillon.
- Wearable dimensions: a 39.5 mm diameter and 9.0 mm case thickness avoid the oversized proportions common to complicated watches.
- Two quick-release options: owners receive both an integrated grade 5 titanium bracelet and a vulcanized natural-rubber strap.
- Declared durability: Bianchet states 10 ATM water resistance and 5,000 G shock resistance, unusual headline figures for a gem-set tourbillon but still claims that should be understood within the limits of the manufacturer’s testing and documentation.
Who it is for
The Rotondo UltraFino Diamond is aimed at a collector who wants visible haute-horlogerie mechanics and diamond setting without moving to a large precious-metal case. Its appeal depends on the combination of light titanium, an open-worked automatic flying tourbillon and a jewellery bezel, rather than on understated dress-watch discretion. The 92,500 CHF price, deposit requirement and made-to-order-style reservation process place it firmly in the high-luxury collector segment.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Frequently Asked Questions
How much does the Bianchet Rotondo UltraFino Diamond cost?
Bianchet lists it at 92,500 CHF excluding taxes and requires a 10% deposit, equivalent to 9,250 CHF on that list price, to reserve the watch.
Is the Rotondo UltraFino Diamond water resistant?
Yes. Bianchet states a 10 ATM water-resistance rating. That supports everyday water exposure but is not a diving guarantee.
What movement is inside the watch?
It uses Bianchet’s in-house automatic Calibre UR01, with a 60-second flying tourbillon, 225 components, 29 jewels, a 3 Hz frequency and a 60-hour power reserve with a stated ±5% tolerance.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What warranty does Bianchet provide?
The watch carries a five-year international warranty from delivery for manufacturing and mechanical defects.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
