The Titanium Field Guide

Bianchet UltraFino Tonneau Maserati (AquaRainbow)

TNUFFTSKMST100

The Bianchet UltraFino Tonneau Maserati (AquaRainbow) is a 40 mm carbon watch with a Bianchet Cal. UT01 automatic movement.

All Bianchet watchesOther watchesUnder 11 mm thickTourbillonDisplay back
Price
≈$90,709 (CHF 75,500)
Material
Carbon
Grade / type
High-density carbon
Water resistance
50 m
Reference
TNUFFTSKMST100
Type
Other
Case diameter
40.0 mm
Thickness
9.9 mm
Lug-to-lug
47.5 mm
Origin
Switzerland
Movement
Automatic flying tourbillon (60-second), 3 Hz, 29 jewels, solid 18k rose gold rotor
Caliber
Bianchet Cal. UT01
Power reserve
60 hours
Complications
Tourbillon
Colour
Black
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Integrated high-density carbon bracelet plus a vulcanized rubber strap, quick-release
Matching bracelet
Standard
Crystal
Sapphire
Display back
Yes
Dial
Openworked Maserati-inspired skeleton
Availability
Offered
Status
Limited edition (10 percent deposit to reserve)
Not published
Weight, Hardness, Construction, Surface treatment, Caseback, Lume
High confidence Verified Oct 2026 Source: Bianchet (maker product page)
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Frequently asked questions

What is the case of the Bianchet UltraFino Tonneau Maserati (AquaRainbow) made of?

The case is high-density carbon. That is confirmed against the maker's specification.

What size is the Bianchet UltraFino Tonneau Maserati (AquaRainbow)?

The case is 40 mm across, 9.9 mm thick and 47.5 mm from lug to lug. It is water resistant to 50 m.

How much does the Bianchet UltraFino Tonneau Maserati (AquaRainbow) cost, and is it available?

It is in production, at a list price of $90,709.

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