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Tudor Pelagos 42mm Titanium and Stainless Steel
Ref. M25600TB-0001
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Stepping up in Tudor's range
The Pelagos was Tudor's answer to a specific question: could a professional diving watch be built to be worn all day, every day, without the weight of steel becoming an argument against it? Titanium case and bracelet together bring the watch in at 145 grams — substantial enough to feel purposeful, light enough to forget you are wearing it through a full working day or a long dive. The MT5612 is a COSC-certified manufacture calibre, which means it has passed chronometer testing and runs on a 70-hour reserve — enough that taking it off on a Friday evening and picking it up Monday morning costs nothing. At 14.3mm thick it sits lower than many divers rated to this depth, and the 22mm lug width means the bracelet fills the wrist properly at 42mm rather than leaving it looking undersprung. The blue lume on a blue dial is a detail that reads as considered rather than accidental: under low light the indices hold their own colour rather than turning the generic green most dials produce.
- Reference
- M25600TB-0001
- Brand
- Tudor
- Collection
- Pelagos
- Case size
- 42mm
- Case thickness
- 14.3mm
- Lug width
- 22mm
- Case material
- Titanium
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- MT5612
- Functions
- Date
- Water resistance
- 500m
- Bracelet / strap
- Titanium bracelet
- Strap colour
- Grey
- Clasp
- Folding clasp
- Lume
- Luminous
- Condition
- Pre-owned
- Retailer
- Mappin & Webb
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), Blue Dial Watches (834), Sports Watches (729), Dive Watches (521) and Pre-Owned, Ex-Display & Vintage Watches (326).
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
- Sits in the lower half of Tudor's range as we list it
Worth knowing
- 14.3mm thick, so it will not disappear under a cuff
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 | M25600TB-0001 | S501-BK-R-S | L28364529 |
|---|---|---|---|
| Price | £3,250 | £3,150 | £3,250 |
| Case size | 42mm | 43mm | 43mm |
| Water resistance | 500m | 500m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Titanium bracelet | Leather strap | Stainless steel bracelet |
| Power reserve | 70 hours | 38 hours | 52 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
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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