Kensington Watches
Blancpain Fifty Fathoms Automatique 42.3mm Mens Watch Black

Tap the image to enlarge

Blancpain

Blancpain Fifty Fathoms Automatique 42.3mm Mens Watch Black

Ref. 5010-12B30-NABA

The 42.30 mm case is satin-brushed Grade 23 titanium, kept to 14.30 mm in thickness and fitted with a unidirectional rotating bezel topped in sapphire. The sunburst black dial carries luminous Arabic numerals and baton markers alongside a date window between four and five o'clock, with the exhibition caseback revealing the in-house Calibre 1315 beneath. That movement runs at 28,800 vph with a silicon balance spring and draws 120 hours of power reserve from three series-coupled barrels. A heavy-duty black NATO strap with a titanium pin buckle completes the watch.

Reference
5010-12B30-NABA
Brand
Blancpain
Collection
coupled barrelsFrequency: 4
Case size
42.3mm
Case thickness
14.30mm
Case material
Titanium
Case shape
Round
Dial
Black
Crystal
Sapphire
Bezel
Unidirectional rotating
Movement
Automatic
Calibre
1315
Functions
Date
Water resistance
300m
Bracelet / strap
Titanium bracelet
Strap colour
Black
Clasp
Buckle
Lume
Luminous
Retailer
Mappin & Webb
Additional specifications
Power reserve
120 hours
Learn more about Blancpain

Jehan-Jacques Blancpain registered as a watchmaker in Villeret in 1735, which makes Blancpain the oldest name in the industry by registration date. The dial still carries JB 1735.

The claim comes with an asterisk the house is candid about: production stopped during the quartz crisis. The name was dormant until Jean-Claude Biver and Jacques Piguet bought it in 1983 and relaunched it on a defiantly contrarian promise — there has never been a quartz Blancpain, and there never will be. In a market then convinced mechanical watchmaking was finished, this proved commercially astute as well as romantic.

The technical high-water mark of the modern era came in 1991 with the 1735 Grande Complication, which combined a tourbillon, perpetual calendar, moon phase, minute repeater, and split-seconds chronograph in one wristwatch.

Blancpain's other lasting contribution is the Fifty Fathoms of 1953, developed with French combat divers and predating the Submariner. It established the vocabulary of the dive watch — rotating bezel, high legibility, real water resistance — and remains the collection most buyers know.

The Swatch Group acquired the brand in 1992. The Villeret line continues the classical side of the house: round cases, double stepped bezels, and complications presented without ornament.

1735
Jehan-Jacques Blancpain registers as a watchmaker in Villeret.
1953
The Fifty Fathoms establishes the modern dive watch.
1983
Jean-Claude Biver and Jacques Piguet revive the dormant brand.
1991
The 1735 Grande Complication is released.
1992
Acquired by the Swatch Group.

All Blancpain watches

Also in 4 collections

This watch appears in Automatic Watches (1,540), Sports Watches (700), Dive Watches (503) and Titanium Watches (150).

Best of 2 retailers

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
  • 120-hour reserve survives a weekend off the wrist
  • Luminous hands and markers for low light

Worth knowing

  • 14.3mm thick, so it will not disappear under a cuff
Best forDivingSwimmingEveryday wear
Less suited toUnder a shirt cuff

Blancpain Fifty Fathoms Automatique alternatives

Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.

Fifty Fathoms Automatique 42.3mm Mens Watch Black compared with 2 alternatives from other brands
SpecificationThis watchFifty Fathoms Automatique 42.3mm Mens Watch Black5010-12B30-NABAGlashütte OriginalOriginal SeaQ Panorama Date 43mm Mens Watch1-36-13-04-91-34PaneraiLuminor Marina Carbotech 44mm Mens WatchPAM01661
Price£15,500£14,800£13,100
Case size42.3mm43.2mm44mm
Water resistance300m300m300m
MovementAutomaticAutomaticAutomatic
StrapTitanium braceletFabric strapFabric strap
Power reserve120 hours100 hours72 hours
This watchClosely matched
  • Costs less
  • Wears larger

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 explained

Will the glass scratch?

Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.

Sapphire, mineral and acrylic compared

Does 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 compared

How long does it run for when it's not worn?

About 120 hours fully wound — enough to sit off the wrist over a weekend and still be running.

Is it a men's or women's watch?

Listed as men's.

Cheapest place to buy

Both Mappin & Webb and Goldsmiths list it at £15,500, so choose on delivery and warranty rather than price.

More Blancpain watches like the Fifty Fathoms Automatique

In stock, and close on style and price