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Ulysse Nardin

Ulysse Nardin Freak ONE 2405-500-2A/3C

The Ulysse Nardin Freak ONE (reference 2405-500-2A/3C) is a 44 mm titanium / 18k gold watch. 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
2405-500-2A/3C
Collection
Freak
Case size
44 mm
Case material
Titanium / 18k gold
Case shape
Round
Crystal
Sapphire

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.

ReferenceSizeMaterialDialCaliberYears
2405-500-2A/3C (This watch)44 mmTitanium / 18k gold—UN-2402024–
2303-270-2A-KAKI/0A43 mm—Khaki greenUN-2302019–
2303-270.1/BLACK43 mmTitanium, black DLCBlackUN-2302019–
2303-270.2/BLACK43 mmTitanium, black DLCBlackUN-2302019–
2403-500-3A/3A44 mmCarbonium / titaniumNavy blueUN-2402024–
2403-500-3A/3B44 mmCarbonium / titaniumNavy blueUN-2402024–
2403-500-8A/3A44 mmCarbonium / titaniumGreen (khaki)UN-2402024–
2403-500-8A/3B44 mmCarbonium / titaniumGreen (khaki)UN-2402024–
2405-500-2A/3A44 mmTitanium / 18k gold—UN-2402024–

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 2405-500-2A/3C?
The Ulysse Nardin Freak ONE 2405-500-2A/3C has a 44 mm case.
What movement does the Ulysse Nardin Freak ONE 2405-500-2A/3C use?
It uses the automatic caliber UN-240, with a 90-hour power reserve.
Is the Ulysse Nardin Freak ONE 2405-500-2A/3C still in production?
Yes, it is a current reference.
When did the Ulysse Nardin Freak ONE 2405-500-2A/3C come out?
It was introduced in 2024.
What is the Ulysse Nardin Freak ONE 2405-500-2A/3C made of?
The case is titanium / 18k gold.

Catalog facts checked September 2026.