Ulysse Nardin
Ulysse Nardin Blast Tourbillon 1723-400/00
The Ulysse Nardin Blast Tourbillon (reference 1723-400/00) is a 45 mm titanium watch with a skeleton dial. It runs on the automatic caliber UN-172 with a 72-hour power reserve. It was introduced in 2021 and is still in production.
Specifications
Case
- Reference
- 1723-400/00
- Collection
- Blast
- Case size
- 45 mm
- Case material
- Titanium
- Case shape
- Round
- Crystal
- Sapphire
Dial and bezel
- Dial
- Skeleton
Movement
- Movement
- Automatic
- Caliber
- UN-172
- Power reserve
- 72 hours
- Frequency
- 18,000 vph
- Jewels
- 25
- Functions
- Tourbillon, Skeleton
Production
- Production
- 2021 – today (current)
How it compares within the Blast family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 1723-400/00 (This watch) | 45 mm | Titanium | Skeleton | UN-172 | 2021– |
| 1063-400-2A/1A | 45 mm | — | — | — | — |
| 1723-400-3A/03 | 45 mm | Titanium, blue PVD | Blue (skeleton) | UN-172 | 2021– |
| 1723-400-3A/BLACK | 45 mm | Titanium, black DLC | Black (skeleton) | UN-172 | 2021– |
| 1723-400-3B/00 | 45 mm | Titanium / ceramic | Skeleton | UN-172 | 2021– |
| 1723-400/03 | 45 mm | Titanium, blue PVD | Blue (skeleton) | UN-172 | 2021– |
| 1723-400/BLACK | 45 mm | Titanium, black DLC | Black (skeleton) | UN-172 | 2021– |
| 3713-260-3/BLACK | 42 mm | Titanium, black DLC | Black (skeleton) | — | — |
| 3713-260/03 | 42 mm | Titanium | Blue (skeleton) | — | — |
About the Blast family
The Blast, introduced in 2021, is one of Ulysse Nardin's most modern designs. Its case and movement are built around an X-shaped structure, with a flying tourbillon visible on the dial side in an open, angular architecture.
The references in this catalog use the automatic UN-172 caliber and are made in titanium, including black-coated and blue-coated versions and combinations with ceramic. Check the tourbillon and automatic winding, look closely at the open movement for dust, and expect buyers to ask for the full set and a service history from the brand.
Quick answers
- What size is the Ulysse Nardin Blast Tourbillon 1723-400/00?
- The Ulysse Nardin Blast Tourbillon 1723-400/00 has a 45 mm case.
- What movement does the Ulysse Nardin Blast Tourbillon 1723-400/00 use?
- It uses the automatic caliber UN-172, with a 72-hour power reserve.
- Is the Ulysse Nardin Blast Tourbillon 1723-400/00 still in production?
- Yes, it is a current reference.
- When did the Ulysse Nardin Blast Tourbillon 1723-400/00 come out?
- It was introduced in 2021.
- What is the Ulysse Nardin Blast Tourbillon 1723-400/00 made of?
- The case is titanium.
Catalog facts checked September 2026.