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Hublot Big Bang Unico Petrol Blue Ceramic 42mm

441.ES.5121.RX

The Hublot Big Bang Unico Petrol Blue Ceramic 42mm is a 42 mm ceramic chronograph with an HUB1280 Unico automatic movement.

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Material
Ceramic
Grade / type
Polished ceramic
Water resistance
100 m
Reference
441.ES.5121.RX
Type
Chronograph
Case diameter
42.0 mm
Origin
Switzerland
Movement
Automatic chronograph
Caliber
HUB1280 Unico
Power reserve
~72 h
Complications
Date
Colour
Blue
Construction
Assembled
Finish technology
Natural finish
Caseback
Sapphire
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Petrol blue lined rubber straps
Crystal
Sapphire
Display back
Yes
Dial
Petrol blue skeleton
Dial colours
Blue
Availability
Offered
Status
Current
Not published
Price, Thickness, Lug-to-lug, Weight, Hardness, Surface treatment, Matching bracelet, Lume
Medium confidence Verified Jul 2026 Source: Hublot Big Bang Unico Petrol Blue Ceramic 42 (maker)
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Frequently asked questions

What is the case of the Hublot Big Bang Unico Petrol Blue Ceramic 42mm made of?

The case is polished ceramic. The guide has not yet confirmed it on the maker's own page. The caseback is sapphire.

What size is the Hublot Big Bang Unico Petrol Blue Ceramic 42mm?

The case is 42 mm across. It is water resistant to 100 m.

How much does the Hublot Big Bang Unico Petrol Blue Ceramic 42mm cost, and is it available?

It is in production, but the maker does not publish a price.

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