Bianchet B1.618 UltraFino Carbon (Sky Blue)

The Bianchet B1.618 UltraFino Carbon (Sky Blue) is a current-production watch with a monobloc high-density carbon case. It is priced well above the $1,540 median across the guide. It ships on a matching exotic-material bracelet rather than a strap.

4 official photos · reader photos welcome

Price

≈$84,144 (CHF 67,500)

Material

Carbon

Grade / type

Monobloc high-density carbon

Water resistance

50 m

Reference

UFFTSKCBSB

Type

Other

Case diameter

40.0 mm

Thickness

8.9 mm

Lug-to-lug

47.5 mm

Origin

Switzerland

Movement

Automatic flying tourbillon (60-second), 3 Hz, 29 jewels

Caliber

Bianchet Cal. UT01

Power reserve

60 hours

Complications

Tourbillon

Colour

Black

Construction

Monobloc

Caseback

Sapphire (display)

Nickel-free

Not verified (clasp or buckle material not confirmed)

Bracelet / strap

Integrated high-density carbon bracelet with a titanium deployant buckle, plus a vulcanised rubber strap on a quick-release system

Matching bracelet

Standard

Crystal

Sapphire

Display back

Yes

Dial

Openworked skeleton, with sky blue accents

Dial colours

Blue

Availability

Offered

Status

Current

Not published

Weight, Hardness, Surface treatment, Lume

Medium confidence Verified Aug 2026 Source: Bianchet (maker product page) / Monochrome

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