Hublot
Hublot Spirit of Big Bang 45 601.NX.0173.LR
The Hublot Spirit of Big Bang 45 (reference 601.NX.0173.LR) is a 45 mm titanium watch with a skeleton dial. It runs on the automatic caliber HUB4700 with a 50-hour power reserve and is water resistant to 100 m. It is no longer in production.
Specifications
Case
- Reference
- 601.NX.0173.LR
- Collection
- Spirit of Big Bang
- Case size
- 45 mm
- Case material
- Titanium
- Case shape
- Tonneau
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Alligator leather with rubber lining strap
Dial and bezel
- Dial
- Skeleton
Movement
- Movement
- Automatic
- Caliber
- HUB4700
- Power reserve
- 50 hours
- Frequency
- 36,000 vph
- Functions
- Chronograph, Date, Skeleton
Production
- Production
- Discontinued
Dial versions
This reference was made with these dials and finishes.
601.NX.0173.LR Skeleton
Skeleton
601.NX.0173.LR.0904
601.NX.0173.LR.0904
Jewellery
601.NX.0173.LR.1104
601.NX.0173.LR.1104
Diamonds
601.NX.0173.LR.1704
601.NX.0173.LR.1704
Pavé
How it compares within the Spirit of Big Bang family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 601.NX.0173.LR (This watch) | 45 mm | Titanium | Skeleton | HUB4700 | — |
| 601.CI.7170.LR | 45 mm | Ceramic | Blue | — | — |
| 642.NX.0170.RX | 42 mm | Titanium | Skeleton | HUB4700 | — |
| 665.EN.891L.LR.1204 | 39 mm | Ceramic | — | — | — |
| 665.EO.891L.LR.1204 | 39 mm | Ceramic | — | — | — |
| 665.NX.1170.RX.1204 | 39 mm | Titanium | Black | — | — |
| 665.OE.9010.LR.1604 | 39 mm | King Gold | White | — | — |
| 665.OX.1180.RX.1204 | 39 mm | King Gold | — | — | — |
| 665.RO.891P.LR.1204 | 39 mm | Ceramic | — | — | — |
About the Spirit of Big Bang family
The Spirit of Big Bang was introduced in 2014 with a tonneau-shaped case, a departure from Hublot's round watches, while keeping the layered construction and visible screws of the Big Bang.
The catalog includes chronographs with the HUB4700 caliber, based on the high-frequency El Primero, in titanium, King Gold, ceramic and sapphire. Dealers identify the material and dial from the reference and check the strap and papers.
Quick answers
- What size is the Hublot Spirit of Big Bang 45 601.NX.0173.LR?
- The Hublot Spirit of Big Bang 45 601.NX.0173.LR has a 45 mm case.
- What movement does the Hublot Spirit of Big Bang 45 601.NX.0173.LR use?
- It uses the automatic caliber HUB4700, with a 50-hour power reserve.
- How water resistant is the Hublot Spirit of Big Bang 45 601.NX.0173.LR?
- It is water resistant to 100 metres.
- Is the Hublot Spirit of Big Bang 45 601.NX.0173.LR still in production?
- Discontinued.
- What is the Hublot Spirit of Big Bang 45 601.NX.0173.LR made of?
- The case is titanium. Bracelet or strap: Alligator leather with rubber lining strap.
Catalog facts checked September 2026.