Hublot
Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX
The Hublot Big Bang Original Steel Ceramic 44 (reference 301.SB.131.RX) is a 44 mm stainless steel/ceramic watch with a black dial. It runs on the automatic caliber HUB4100 with a 42-hour power reserve and is water resistant to 100 m. It was introduced in 2005 and is still in production.
Specifications
Case
- Reference
- 301.SB.131.RX
- Collection
- Big Bang
- Case size
- 44 mm
- Case material
- Stainless steel/ceramic
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Rubber strap
Dial and bezel
- Dial
- Black
Movement
- Movement
- Automatic
- Caliber
- HUB4100
- Power reserve
- 42 hours
- Frequency
- 28,800 vph
- Functions
- Chronograph, Date
Production
- Production
- 2005 – today (current)
How it compares within the Big Bang family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 301.SB.131.RX (This watch) | 44 mm | Stainless steel/ceramic | Black | HUB4100 | 2005– |
| 301.SM.1770.RX | 44 mm | Stainless steel/ceramic | Black | HUB4100 | — |
| 301.SX.1170.RX | 44 mm | Stainless steel | Black | HUB4100 | — |
| 421.CI.1170.RX | 44 mm | Black ceramic (Black Magic) | Skeleton | HUB1280 | — |
| 421.NM.1170.RX | 44 mm | Titanium/ceramic | Skeleton | HUB1280 | — |
| 421.NX.1170.RX | 44 mm | Titanium | Skeleton | HUB1280 | — |
| 441.CI.1171.RX | 42 mm | Black ceramic (Black Magic) | Skeleton | HUB1280 | — |
| 441.NM.1171.RX | 42 mm | Titanium/ceramic | Skeleton | HUB1280 | — |
| 441.NX.1171.RX | 42 mm | Titanium | Skeleton | HUB1280 | — |
About the Big Bang family
The Big Bang was introduced in 2005 as a 44 mm chronograph built from layers of different materials, with the six H-shaped screws on the bezel inherited from the original Hublot. It launched the brand's Art of Fusion idea and quickly became its main line.
The catalog lists more than a hundred references, including chronographs with the in-house Unico movements such as the HUB1242 and HUB1280, in King Gold, ceramic, titanium, carbon and sapphire. Dealers identify the generation, size and material from the reference and check the strap system and papers.
Quick answers
- What size is the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX?
- The Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX has a 44 mm case.
- What movement does the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX use?
- It uses the automatic caliber HUB4100, with a 42-hour power reserve.
- How water resistant is the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX?
- It is water resistant to 100 metres.
- Is the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX still in production?
- Yes, it is a current reference.
- When did the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX come out?
- It was introduced in 2005.
- What is the Hublot Big Bang Original Steel Ceramic 44 301.SB.131.RX made of?
- The case is stainless steel/ceramic. Bracelet or strap: Rubber strap.
Catalog facts checked September 2026.