The Titanium Field Guide

Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold

HBGLFTGD4

The Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold is a 43 mm carbon watch with a hand-wound movement. At a list price of $102,723, it costs more than 92% of the 92 carbon watches in production. With a 90-hour power reserve, only three of the 100 other mechanical carbon watches with a stated reserve run longer.

All Bianchet watchesOther watchesLightweightLightest, rankedTourbillonDisplay back
Price
≈$102,723 (CHF 85,500)
Material
Carbon
Grade / type
Titanium-dust high-density carbon
Weight
85 g (head only)
Water resistance
100 m
Reference
HBGLFTGD4
Type
Other
Case diameter
43.0 mm
Thickness
14.35 mm
Lug-to-lug
51 mm
Origin
Switzerland
Movement
Manual-wind flying tourbillon (60-second) with Grande Date, 3 Hz, 20 jewels
Caliber
Bianchet in-house flying tourbillon Grande Date
Power reserve
90 hours
Complications
Tourbillon, Date
Colour
Black
Construction
Assembled
Finish technology
Natural finish
Caseback
Sapphire (display)
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Two natural vulcanized rubber straps with an 18K 3N solid yellow gold pin buckle
Crystal
Glare-proof sapphire, front and back
Display back
Yes
Dial
Openworked skeleton with gold accents
Lume
Super-LumiNova
Availability
Offered
Status
Limited edition of 21 (10 percent deposit to reserve)
Not published
Hardness, Surface treatment, Matching bracelet
High confidence Verified Oct 2026 Source: Bianchet (Grande Date Hybrid Gold)
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More watches from Bianchet

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Frequently asked questions

What is the case of the Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold made of?

The case is titanium-dust high-density carbon. That is confirmed against the maker's specification. The caseback is sapphire (display).

What size is the Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold?

The case is 43 mm across, 14.35 mm thick and 51 mm from lug to lug. It is water resistant to 100 m.

How much does the Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold weigh?

About 85 g for the watch head alone.

How much does the Bianchet B1.618 Flying Tourbillon Grande Date Hybrid Gold cost, and is it available?

It is in production, at a list price of $102,723.

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