The Wristwatch Field Guide

Hublot Big Bang Unico Petrol Blue Ceramic 42mm

441.ES.5121.RX

The Hublot Big Bang Unico Petrol Blue Ceramic 42mm is a current-production chronograph watch with a blue polished ceramic case. It measures 42.0 mm across, and is water resistant to 100 m. Inside is the HUB1280 Unico automatic chronograph movement, with ~72 h power reserve. Complications: Date. Brand origin: Switzerland.

Titanium and ceramic chronograph watchesCeramicBlueDisplay back
Reference
441.ES.5121.RX
Type
Chronograph
Price
–
Case diameter
42.0 mm
Thickness
–
Lug-to-lug
–
Water resistance
100 m
Weight
–
Origin
Switzerland
Movement
Automatic chronograph
Caliber
HUB1280 Unico
Power reserve
~72 h
Complications
Date
Material
Ceramic
Grade / type
Polished ceramic
Colour
Blue
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
Sapphire
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Petrol blue lined rubber straps
Matching bracelet
–
Crystal
Sapphire
Display back
Yes
Dial
Petrol blue skeleton
Lume
–
Availability
Offered
Status
Current
Medium confidence Verified Jul 2026 Source: Hublot Big Bang Unico Petrol Blue Ceramic 42 (maker) Maker / listing ↗
Facts are free to cite with a link.
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Alternatives to the Hublot Big Bang Unico Petrol Blue Ceramic 42mm

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HublotClassic Fusion Titanium 42mm$7,90042.0 mmDress
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HublotBig Bang Unico White Ceramic 42mm$23,00042.0 mmChronograph
HublotBig Bang Unico Black Magic 42mm$15,50042.0 mmChronograph
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HublotBig Bang Unico Magic Ceramic 42mm$33,00042.0 mm14.5 mm thickChronograph

Frequently asked questions

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

The Hublot Big Bang Unico Petrol Blue Ceramic 42mm has a blue polished ceramic case with a sapphire caseback. It is recorded at medium confidence pending a maker-stated material.

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

It is 42.0 mm in diameter, and water resistant to 100 m.

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

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

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