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Hublot

Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX

The Hublot Square Bang Unico Titanium Ceramic 42 (reference 821.NM.0170.RX) is a 42 mm titanium/ceramic watch with a skeleton dial. It runs on the automatic caliber HUB1280 with a 72-hour power reserve and is water resistant to 100 m. It was introduced in 2022 and is still in production.

Specifications

Case

Reference
821.NM.0170.RX
Collection
Square Bang
Case size
42 mm
Case material
Titanium/ceramic
Case shape
Square
Crystal
Sapphire
Water resistance
100 m
Bracelet / strap
Rubber strap

Dial and bezel

Dial
Skeleton

Movement

Movement
Automatic
Caliber
HUB1280
Power reserve
72 hours
Frequency
28,800 vph
Functions
Flyback chronograph, Date, Skeleton

Production

Production
2022 – today (current)

How it compares within the Square Bang family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
821.NM.0170.RX (This watch)42 mmTitanium/ceramicSkeletonHUB12802022–
821.CI.0170.RX42 mmBlack ceramic (Black Magic)SkeletonHUB12802022–
821.HX.0170.RX42 mmWhite ceramicSkeletonHUB12802022–
821.NX.0170.RX42 mmTitaniumSkeletonHUB12802022–

About the Square Bang family

The Square Bang was introduced in 2022 as the first square Big Bang, keeping the layered construction and H-shaped screws in a square case.

The catalog lists references in titanium, Black Magic ceramic, white ceramic and titanium and ceramic, with the Unico chronograph caliber HUB1280. The square shape gives the Unico movement a different frame while keeping the Big Bang's character. Dealers identify the material from the reference, check the ceramic for chips and ask for the box and papers.

Quick answers

What size is the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX?
The Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX has a 42 mm case.
What movement does the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX use?
It uses the automatic caliber HUB1280, with a 72-hour power reserve.
How water resistant is the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX?
It is water resistant to 100 metres.
Is the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX still in production?
Yes, it is a current reference.
When did the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX come out?
It was introduced in 2022.
What is the Hublot Square Bang Unico Titanium Ceramic 42 821.NM.0170.RX made of?
The case is titanium/ceramic. Bracelet or strap: Rubber strap.

Catalog facts checked September 2026.