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Tudor Black Bay Chronograph 41mm Stainless Steel M79360N-0002
Ref. M79360N
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 34 Tudor watches in stock.The Black Bay Chronograph arrived as Tudor's answer to a question the brand had been circling for years: whether a manufacture chronograph movement could sit inside the Black Bay's diving watch body without the result feeling like a compromise in either direction. The MT5813 settles that. Developed jointly with Breitling on the architecture of the B01, it carries a column wheel, a vertical clutch and a silicon balance spring, and holds a COSC chronometer certificate — the kind of movement specification that would headline a watch costing considerably more, presented here without ceremony. For a chronograph of this purpose, 14.4mm is genuinely restrained. Shaved case walls and a deeply domed crystal pull the watch closer to the wrist than the lug-to-lug of 49.9mm might suggest on paper, and the screw-down pushers and crown sit flush enough that the whole thing disappears under a cuff. This reference replaced the earlier 79350 by swapping the original thick steel bezel ring for a lower-profile black anodised aluminium insert — a change that reads as a refinement of proportion rather than a cosmetic revision. The snowflake hands are thick enough to hold a serious charge of Super-LumiNova, and the tachymeter bezel is fixed, which keeps it readable without risk of accidental rotation. On the bracelet, the T-fit clasp earns its keep: five positions across 8mm of adjustment, no tools required. For a watch worn through the day and into the evening, that kind of instant micro-fit matters more than it sounds.
- Reference
- M79360N
- Brand
- Tudor
- Collection
- Black Bay
- Case size
- 41mm
- Case thickness
- 14.4mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Bezel
- Fixed tachymeter
- Movement
- Automatic
- Calibre
- MT5813
- Functions
- Chronograph, Date, Small seconds, Tachymeter
- Water resistance
- 200m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Super-LumiNova
- Condition
- Pre-owned
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 49.9mm
- 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 Black Bay range (26), Back in Stock (5,241), Stainless Steel Watches (3,391), Automatic Watches (1,792), Chronograph Watches (1,336), Sports Watches (801) and Silver Dial Watches (757).
Temporarily out of stock
Mappin & Webb is not currently taking orders for this reference. Last listed as available on 8 October 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 200m 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
- 14.4mm thick, so it will not disappear under a cuff
Tudor Black Bay alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | M79360N | SMARINECHRONO-BL-B | WBP2150.FT6210 |
|---|---|---|---|
| Price | £3,950 | £3,996 | £3,360 |
| Case size | 41mm | 43mm | 40mm |
| Water resistance | 200m | 200m | 200m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Rubber strap | Rubber strap |
| Power reserve | 70 hours | — | 38 hours |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 200m 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 49.9mm, 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 unisex, and at this size it suits any wrist that takes the dimensions.
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