Hublot Big Bang Unico Petrol Blue Ceramic 42mm

The Hublot Big Bang Unico Petrol Blue Ceramic 42mm is a current-production chronograph watch with a blue polished ceramic case. The caseback is open, so the movement is visible.

4 official photos · reader photos welcome

Ceramic

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

Caseback

Sapphire

Nickel-free

Not verified (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, Ceramic bracelet, Lume

Medium confidence Verified Jul 2026 Source: Hublot Big Bang Unico Petrol Blue Ceramic 42 (maker)

Copy citationFacts are free to cite with a link.

Similar ceramic watches

IWCPortugieser Chronograph Ceratanium–41.0 mm13.1 mm thickChronographsame category · same style · similar size · same movementEcho/NeutraAverau 42 Ceramic Chrono$2,13042.0 mm14.6 mm thickChronographsame category · same style · similar size · same movement

PaneraiLuminor 1950 3 Days Chrono Flyback Automatic Ceramica 44mm–44.0 mmChronographsame category · same style · similar size · same movement

OmegaSpeedmaster Dark Side of the Moon$12,00044.3 mmChronographsame category · same style · same movement · same strapOmegaSpeedmaster Moonphase Blue Side of the Moon$15,70044.3 mm17.04 mm thick107 gChronographsame category · same style · same movement · same strap

OmegaSpeedmaster White Side of the Moon–44.3 mmChronographsame category · same style · same movement · same strap

RadoHyperChrome Automatic Chronograph$4,65045.0 mm13 mm thickChronographsame category · same style · same movement · same country

RadoHyperChrome XXL Automatic Chronograph$4,65045.0 mm13 mm thickChronographsame category · same style · same movement · same country

Alternatives to the Hublot Big Bang Unico Petrol Blue Ceramic 42mm

Emporio ArmaniCeramica Chronograph Black–43.0 mmChronographsame category · same style · shared complications · similar size

Emporio ArmaniCeramica Chronograph White–43.0 mmChronographsame category · same style · shared complications · similar size

OmegaSpeedmaster Dark Side of the Moon Apollo 8$11,30044.3 mmChronographsame category · same style · similar sizeOmegaSpeedmaster Dark Side of the Moon Apollo 8$16,10044.3 mm12.97 mm thickChronographsame category · same style · similar sizeOmegaSpeedmaster Dark Side of the Moon (calibre 9908)$16,10044.3 mm13.02 mm thick102 gChronographsame category · same style · similar sizeOmegaSpeedmaster Grey Side of the Moon$16,40044.3 mm12.97 mm thickChronographsame category · same style · similar size

More ceramic watches from Hublot

HublotBig Bang Unico White Ceramic 42mm$23,00042.0 mmChronograph

HublotBig Bang Unico Black Magic 42mm$15,50042.0 mmChronographHublotBig Bang Unico Dark Green Ceramic 42mm–42.0 mmChronograph

HublotBig Bang Unico Magic Ceramic 42mm$33,00042.0 mm14.5 mm thickChronographHublotSquare Bang Unico Black Magic 42mm–42.0 mmChronographHublotSpirit of Big Bang White Ceramic 42mm–42.0 mmChronograph

All ceramic Hublot watches · Ceramic chronograph watches · All 231 watches

Learn: Best Ceramic Watches · Best Under $5,000 · Is It Worth It? · Color Guide