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Ulysse Nardin Blast Tourbillon 45mm 18ct Rose Gold Upper Case
Ref. 1725-400-3A/02
Sits in Ulysse Nardin’s upper tier here — more premium than three quarters of the Ulysse Nardin watches we list, which start at £6,550.
Price range £6,550 to £62,790 across 20 Ulysse Nardin watches in stock.At 45mm and 12.6mm thick, the case pairs an 18ct rose gold upper section with a black DLC-coated titanium central band, finished with a brushed and polished black ceramic bezel. The sapphire dial is fully open-worked in a geometric X-pattern, revealing the in-house UN-172 calibre beneath. A flying tourbillon sits at six o'clock, while a solid platinum micro-rotor occupies twelve and remains visible from the front. Polished rose gold hands and applied indices carry Super-LumiNova. The black structured rubber strap closes with a self-deploying three-blade folding buckle in rose gold and black titanium.
- Reference
- 1725-400-3A/02
- Brand
- Ulysse Nardin
- Case size
- 45mm
- Case thickness
- 12.6mm
- Case material
- Titanium
- Case shape
- Round
- Dial
- Black
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- UN-172
- Functions
- Skeleton dial
- Water resistance
- 50m
- Bracelet / strap
- Rubber strap
- Strap colour
- Black
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Additional specifications
- Power reserve
- 72 hours
- Gem set
- Yes
Learn more about Ulysse Nardin
Leonard Ulysse Nardin founded his workshop in Le Locle in 1846 and specialised in marine chronometers — the instruments ships used to determine longitude, where an error of seconds meant an error of miles.
The house became one of the two or three most important chronometer makers in the world. More than fifty navies used Ulysse Nardin instruments, and the company holds an extraordinary record at observatory trials: over four thousand certificates and dozens of gold medals, more precision awards than any other manufacturer.
Its modern era began in 1983 when Rolf Schnyder bought the failing company and partnered with Ludwig Oechslin, a scientist and horological historian. The results were the Astrolabium Galileo Galilei of 1985, which displays the positions of sun, moon, and stars and entered the Guinness records as the most functional wristwatch, followed by the Planetarium and Tellurium — together the Trilogy of Time.
Oechslin also designed the Freak of 2001, arguably the most radical wristwatch of the modern era: no dial, no hands, no crown. The entire movement rotates to indicate the time, and it was the first watch to use silicon components in the escapement, a material now standard across the industry.
The Marine collection continues the chronometer heritage. Kering acquired the brand in 2014.
- 1846
- Leonard Ulysse Nardin founds the workshop in Le Locle.
- 1985
- The Astrolabium Galileo Galilei is released.
- 2001
- The Freak pioneers silicon escapement components.
- 2014
- Acquired by Kering.
Also in 4 collections
This watch appears in Automatic Watches (1,540), Watches 44mm and Over (735), Skeleton Watches (273) and Titanium Watches (150).
Temporarily out of stock
Goldsmiths is not currently taking orders for this reference. Last listed as available on 20 September 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- Sapphire crystal, which resists scratching
- 72-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- One of Ulysse Nardin's more premium watches
Worth knowing
- 50m suits rain and handwashing, not swimming
- 45mm is a large watch with real presence
Ulysse Nardin Blast Tourbillon alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 1725-400-3A/02 | 86000-52-001-BB6A | pfh983-1020001-100182 |
|---|---|---|---|
| Price | £59,510 | £43,800 | £62,200 |
| Case size | 45mm | 45mm | 42mm |
| Water resistance | 50m | 30m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Leather strap | Stainless steel bracelet |
| Power reserve | 72 hours | 48 hours | 48 hours |
| This watch |
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Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Showering yes, swimming no. 50m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedHow long does it run for when it's not worn?
About 72 hours fully wound — enough to sit off the wrist over a weekend and still be running.
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