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Ulysse Nardin Diver Chronograph 44mm Titanium Case And Bezel
Ref. 1503-170-3/93
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Stepping up in Ulysse Nardin's range
The Diver Chronograph sits at the serious end of what Ulysse Nardin asks of its dive line — not a dressed-up sports reference but a watch built around the UN-150, a movement the manufacture developed with a DIAMonSIL escapement: diamond-coated silicon components that run without lubrication and hold their rate more consistently across temperature changes than conventional lever and wheel arrangements. The silicon hairspring compounds that resistance to interference. It is the kind of engineering that matters most when the watch is actually underwater, where servicing is not an option. Titanium keeps 44mm honest on the wrist — the watch carries less than its footprint suggests, and the inverted concave bezel sits lower against the hand than a conventional raised profile would. The tri-compax layout places the running seconds at nine, leaving three and six for the chronograph registers, with the date integrated into the hour counter at six rather than given its own window. In strong light the blue dial reads with a fine-grained texture; in the dark, the applied indices and hands hold their charge well into a night dive.
- Reference
- 1503-170-3/93
- Brand
- Ulysse Nardin
- Case size
- 44mm
- Case material
- Titanium
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- UN-150
- Functions
- Chronograph
- Water resistance
- 300m
- Bracelet / strap
- Rubber strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Super-LumiNova
- Retailer
- Goldsmiths
Additional specifications
- Power reserve
- 48 hours
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 6 collections
This watch appears in Back in Stock (3,460), Automatic Watches (1,573), Chronograph Watches (914), Blue Dial Watches (701), Sports Watches (696) and Watches 44mm and Over (569).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 300m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Ulysse Nardin's range as we list it
Worth knowing
- 44mm sits at the larger end
Ulysse Nardin Diver alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 1503-170-3/93 | 1-36-13-07-83-70 | PAM01661 |
|---|---|---|---|
| Price | £11,740 | £11,600 | £13,100 |
| Case size | 44mm | 43.2mm | 44mm |
| Water resistance | 300m | 300m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Stainless steel bracelet | Fabric strap |
| Power reserve | 48 hours | 100 hours | 72 hours |
| This watch | Closely matched | Closely matched |
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 300m it is rated for swimming, snorkelling and recreational diving.
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 48 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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