Ulysse Nardin
Ulysse Nardin Freak ONE OPS 2403-500-8A/3B
The Ulysse Nardin Freak ONE OPS (reference 2403-500-8A/3B) is a 44 mm Carbonium / titanium watch with a green (khaki) dial. It runs on the automatic caliber UN-240 with a 90-hour power reserve. It was introduced in 2024 and is still in production.
Specifications
Case
- Reference
- 2403-500-8A/3B
- Collection
- Freak
- Case size
- 44 mm
- Case material
- Carbonium / titanium
- Case shape
- Round
- Crystal
- Sapphire
- Bracelet / strap
- Rubber strap
Dial and bezel
- Dial
- Green (khaki)
Movement
- Movement
- Automatic
- Caliber
- UN-240
- Power reserve
- 90 hours
- Frequency
- 21,600 vph
- Jewels
- 15
- Functions
- Time only, Flying carrousel
Production
- Production
- 2024 – today (current)
How it compares within the Freak family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 2403-500-8A/3B (This watch) | 44 mm | Carbonium / titanium | Green (khaki) | UN-240 | 2024– |
| 2303-270-2A-KAKI/0A | 43 mm | — | Khaki green | UN-230 | 2019– |
| 2303-270.1/BLACK | 43 mm | Titanium, black DLC | Black | UN-230 | 2019– |
| 2303-270.2/BLACK | 43 mm | Titanium, black DLC | Black | UN-230 | 2019– |
| 2403-500-3A/3A | 44 mm | Carbonium / titanium | Navy blue | UN-240 | 2024– |
| 2403-500-3A/3B | 44 mm | Carbonium / titanium | Navy blue | UN-240 | 2024– |
| 2403-500-8A/3A | 44 mm | Carbonium / titanium | Green (khaki) | UN-240 | 2024– |
| 2405-500-2A/3A | 44 mm | Titanium / 18k gold | — | UN-240 | 2024– |
| 2405-500-2A/3C | 44 mm | Titanium / 18k gold | — | UN-240 | 2024– |
About the Freak family
The Freak, introduced in 2001, changed the idea of what a watch could look like. It has no dial, no hands and, in its original form, no crown: the movement itself rotates to show the time, and it was among the first watches to use silicon parts in the escapement. Later generations include the Freak X with a conventional crown and the Freak One.
The references in this catalog use the UN-230 and UN-240 calibers, in materials such as Carbonium, titanium and gold. These are complex watches, so test the time-setting and winding, and expect buyers to ask for a service history from Ulysse Nardin.
Quick answers
- What size is the Ulysse Nardin Freak ONE OPS 2403-500-8A/3B?
- The Ulysse Nardin Freak ONE OPS 2403-500-8A/3B has a 44 mm case.
- What movement does the Ulysse Nardin Freak ONE OPS 2403-500-8A/3B use?
- It uses the automatic caliber UN-240, with a 90-hour power reserve.
- Is the Ulysse Nardin Freak ONE OPS 2403-500-8A/3B still in production?
- Yes, it is a current reference.
- When did the Ulysse Nardin Freak ONE OPS 2403-500-8A/3B come out?
- It was introduced in 2024.
- What is the Ulysse Nardin Freak ONE OPS 2403-500-8A/3B made of?
- The case is Carbonium / titanium. Bracelet or strap: Rubber strap.
Catalog facts checked September 2026.