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Tudor Pelagos 42mm Titanium and Stainless Steel
Ref. 25600TN
Sits in Tudor’s upper tier here — more premium than three quarters of the Tudor watches we list, which start at £1,650.
Price range £1,650 to £13,950 across 30 Tudor watches in stock.The Pelagos was Tudor's answer to a specific question: how do you build a serious professional diver's watch that a working diver will actually want to wear for hours at a time? The case and bracelet are machined from titanium, which means something built to 42mm and 14.3mm thick sits on the wrist with considerably less mass than the steel equivalent — the bulk is there visually, but the weight largely is not. Inside runs the MT5612, Tudor's own COSC-certified calibre with a silicon hairspring and a 70-hour reserve, introduced specifically to cut the Pelagos's ties to third-party movements and give it something genuinely in-house at its core. The snowflake hands and square hour markers trace a line back to Tudor's vintage diver references, but the blue lume is a considered technical choice rather than an aesthetic one — blue is the last wavelength visible as depth increases, and here the luminescent compound is injected directly into the ceramic bezel disc, so the entire graduation track is readable in absolute darkness alongside the dial. The clasp contains a patented spring mechanism that expands and contracts automatically against a wetsuit under pressure, then retracts as the diver ascends, without any manual intervention. Micro-adjustment slots handle the everyday fit on bare wrist.
- Reference
- 25600TN
- Brand
- Tudor
- Collection
- Pelagos
- Case size
- 42mm
- Case thickness
- 14.3mm
- Lug width
- 22mm
- Case material
- Titanium
- Case shape
- Round
- Dial
- Black
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- ETA 2824
- Functions
- Date
- Water resistance
- 500m
- Bracelet / strap
- Titanium bracelet
- Strap colour
- Grey
- Clasp
- Folding clasp
- Lume
- Luminous
- Condition
- Ex-display
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 50mm
- Power reserve
- 70 hours
Learn more about Tudor
Tudor exists because Hans Wilsdorf wanted to sell a Rolex to people who could not afford one. He registered the name in 1926 and relaunched it properly in 1946 as a separate company: Rolex cases, Rolex bracelets, Rolex crowns, but bought-in movements — usually ETA — at a fraction of the price.
For decades this made Tudor the practical choice for organisations buying in bulk. The French Marine Nationale issued Submariners to its divers. The US Navy tested them. Tudor's military history is arguably richer than Rolex's, because navies bought Tudors.
The watches developed their own identity regardless. The snowflake hands fitted to Submariners from 1969, specified by the French navy for legibility, became a signature the brand still uses. The Monte Carlo chronographs of the early 1970s, with their orange and blue dials, look nothing like anything Rolex made.
The brand withdrew from the US market in 1996 and spent a decade in relative obscurity before returning in 2013 with the Heritage Black Bay, which mined the archive rather than chasing modernity. It worked. Tudor now develops its own movements through a partnership with Kenissi, supplies calibres to Breitling, and holds METAS Master Chronometer certification — a technical position it never had when it was simply the affordable Rolex.
- 1926
- Hans Wilsdorf registers the Tudor name.
- 1946
- Montres Tudor SA is established as a separate company.
- 1969
- Snowflake hands appear on Submariners for the French navy.
- 2012
- The Black Bay revives the brand internationally.
- 2015
- The first in-house Tudor calibre is released.
Also in 7 collections
This watch appears in the Tudor Pelagos range (6), Back in Stock (4,405), Automatic Watches (1,634), Sports Watches (729), Dive Watches (521), Pre-Owned, Ex-Display & Vintage Watches (326) and Titanium Watches (165).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 500m water resistance, rated for actual diving
- Sapphire crystal, which resists scratching
- 70-hour reserve survives a weekend off the wrist
- Luminous hands and markers for low light
- One of Tudor's more premium watches
Worth knowing
- 14.3mm thick, so it will not disappear under a cuff
Price history
This watch is currently at its highest recorded price. It was £3,375 on 2 October. Prices are checked every day, and we record any changes.
Tudor Pelagos alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification |  25600TN | DESCENT-II-R-S | AB0147101A1A1 |
|---|---|---|---|
| Price | £3,950 | £3,500 | £4,060 |
| Case size | 42mm | 43mm | 44mm |
| Water resistance | 500m | 500m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Titanium bracelet | Rubber strap | Stainless steel bracelet |
| Power reserve | 70 hours | 42 hours | 70 hours |
| This watch | Closely matched |
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 500m 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 70 hours fully wound — enough to sit off the wrist over a weekend and still be running.
What size strap does it take?
22mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Will it fit my wrist?
Lug-to-lug is 50mm, which suits wrists from roughly 16.5cm (6½ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Has the price changed recently?
It's currently at its highest recorded price. It's ranged between £3,375 and £3,950, today it's £3,950.
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