The Titanium Field Guide

Hublot Big Bang Original Unico Titanium Ceramic 43mm

431.NM.1370.RX

The Hublot Big Bang Original Unico Titanium Ceramic 43mm is a current-production chronograph watch with a Titanium (grade undisclosed) case, finished with satin and polished. The caseback is open, so the movement is visible.

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Titanium
Titanium (grade undisclosed)
Water resistance
100 m
Reference
431.NM.1370.RX
Type
Chronograph
Price
– · CHF 17,900 at launch per Monochrome; no US price captured
Case diameter
43.0 mm
Thickness
13.2 mm
Origin
Switzerland
Movement
Automatic, integrated chronograph
Caliber
Hublot HUB1280 Unico
Power reserve
72 h
Complications
Chronograph, Date
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Surface treatment
Satin and polished
Caseback
Titanium
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Interchangeable black structured rubber strap with lozenge pattern
Crystal
Sapphire, AR coated
Display back
Yes
Dial
Stamped chequered pattern emulating carbon fibre
Availability
Offered
Status
Current
Not published
Lug-to-lug, Weight, Titanium bracelet, Lume Help verify
Medium confidence Verified Aug 2026 Source: Monochrome, Big Bang Original Unico collection / Hublot (maker) product page
Facts are free to cite with a link.
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Frequently asked questions

What grade of titanium is the Hublot Big Bang Original Unico Titanium Ceramic 43mm?

The Hublot Big Bang Original Unico Titanium Ceramic 43mm has a Titanium (grade undisclosed) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated grade.

What size is the Hublot Big Bang Original Unico Titanium Ceramic 43mm?

It is 43.0 mm in diameter, 13.2 mm thick, and water resistant to 100 m.

How much does the Hublot Big Bang Original Unico Titanium Ceramic 43mm cost, and is it available?

It is current-production; the guide does not list a price for it.

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