The Dirty Dozen WWW watches on A.F.0210. straps.

The Dirty Dozen WWW watches on A.F.0210. straps.


There are thought to be a handful of collections of the complete set of “The Dirty Dozen” W.W.W .watches, which is not surprising since the current cost of putting together a collection of these watches is likely to exceed $40,000.

Seeing one of the Dirty Dozen W.W.W. watches on an A.F.0210. strap is also rare, as there are only a couple of hands full of the original A.F.0210. straps available.

Below is an example of an IWC W.W.W. watch on an A.F.0210. strap.

IWC W.W.W. on AF0210: Dirty Dozen watches

IWC W.W.W. on an AF0210 strap.

AF 0210 strap dated 1945: Dirty Dozen watches

This AF0210 strap appears to be dated 1945.  Images courtesy MWR forum user: baldhead

The strap is self-sealing, and the positioning holes rarely can be seen after use, as can be seen above.

To see all 12 Dirty Dozen WWW watches on A.F.0210. straps are unheard of.

We have now been able to do this for the reader to visualise what a particular W.W.W. watch might look like on an A.F.0210.® strap.      We have used 12 A.F.0210.® straps.

The dirty dozen A.f.0210. straps

The feature image and images used below are attributed to eBay seller: stanley2012.  He has granted permission for his original image to be the basis of the W.W.W. watch images in this article.



From 1945 the British War Office Specification No. R.S./Prov/4373A “Watches, Wristlet, Waterproof” (W.W.W.) for Service wristwatches, replaced the Army Trade Pattern (ATP) specification wristwatch.  These remained on issue until about 1985.

Dirty Dozen W.W.W. watches have been covered in this article in theSpringbar, and most comprehensively in Reference 1.

This was the first watch specification designed for military use, rather than the military using watches being adapted from an available civilian design.  The W.W.W. watch had a black dial, subsidiary seconds and luminous paint for the numerals and hands.  It also had fixed bars, mostly with 18mm lug width.  It was not shockproof.

The NATO strap is a consequence of this fixed bar military standard, a product of the evolution of the pass-through strap.  These watches were originally issued with either pigskin or A.F.0210. canvas webbing straps.

In 1945, during World War II, Britain’s Ministry of Defence (MoD) needed watches to issue to army personnel, and Britain did not have the capacity to manufacture them.  They invited any Swiss manufacturer who could build a watch to the specified standard, to do so.

Due to the demands of military service, very strict specifications were set, for Watches, Wristlet, Waterproof, or what was shortened to W.W.W. watches.

The dial needed to be black, with Arabic numerals and sub-seconds in order to maximise legibility. The watches had to have 15-jewel movements and also had to have luminous hour and minute hands, luminous hour markers, a railroad minute track, a shatterproof crystal, and a stainless-steel case, and fixed bars between lugs.

The case-back had to include the W.W.W designation and a pheon marking, with the dial also displaying the pheon.  Two serial numbers were required, one being the manufacturer’s number, and the other (with the letter) being the military store number.

Twelve companies were commissioned and produced watches in various quantities:  Buren, Cyma, Eterna, Grana, Jaeger-LeCoultre, Lemania, Longines, IWC, Omega, Record, Timor, and Vertex.  Enicar was a thirteenth but did not produce watches.  Each manufacturer was assigned a specific store number with Enicar designated VB 10025, yet there are no known examples.

The full list of W.W.W. suppliers is provided below.

Image courtesy: Konrad Krinim

For some watches which were kept in service for a long period of time, a (retrospective) NATO Stock Number (NSN) was allocated, as listed above.

For example, the NATO dialled IWC watch on an A.F.0210. strap is shown below.

Omega 1953 watch left, on a canvas NATO strap.  Right, an IWC WWW watch,
with NATO dial, in a canvas AF0210 strap.  Image MWR forum user: T.O.W.S. UK.
The IWC watch and some other Dirty Dozen W.W.W. watches were kept in production until well after WWII.  The later NATO version of the IWC watch is shown above on the right.   After NATO was formed, the designation of several of the continuing W.W.W watches was specified in DEF STAN 66-4 (PART4).   The IWC watch by then was given an interim Nato Stock Number, NSN W10/VB10028-9999-99-445-5890.   These first and last numerals W10/445-5890 can be seen on the dial on the right above, beneath the pheon and tritium markings.   The final NSN for all the W.W.W. specification watches as a category was NSN 6645-99-523-8390.

Each manufacturer delivered as many watches as their production capabilities would allow. Only IWC, JLC, and Omega kept a strict record of their order: respectively 6,000, 10,000,  and 25,000.  It is thought approximately 150,000 Dirty Dozen W.W.W. watches were produced.

W.W.W. production

Image courtesy: Konrad Krinim

These were generally all delivered in 1945 and accompanied by a pigskin or canvas strap.  As the Dirty Dozen W.W.W. watches arrived in MoD stores towards the end of the war, they were mostly “decommissioned” and sold to the public.


buren: Dirty Dozen watches
Büren’s W.W.W. used a 36.5mm chrome plated case with their in-house calibre 462 movement.  Some people do not like the Grand Prix signature below the  Bürensignature as it detracts from the military feel to the watch.   The hands were the common sword or gladium type.
Dirty Dozen watches

Büren watches are hard to find in good condition, in particular, the condition of the hands, but the hands do complement the watch.   Later MoD replacement hands were pencil hands, and dials were relumed with promethium 147 and marked with P in a circle.

Buren www Promethium 147 marked dial: Dirty Dozen watches

Production was about 11,000 watches.


Eterna W.W.W. on A.F.0210. strap: Dirty Dozen watches

Eterna’s case is beautifully finished with a concave bezel, and measures 36mm across  The movement is the in-house Calibre 520 H movement, which carried on for many years as the 520 S with centre-seconds hand. The watch has syringe hands which somehow look much better on a Breguet.

Dirty Dozen watches

The Eterna W.W.W.s have never been inexpensive, and not just because they carry the Eterna name and movement: their production numbers are among the lowest for the Dirty Dozen, at around 5,000.

Eterna promethium 147 redialled watches also exist, as for the Buren above.


Record W.W.W. on A.F.0210. strap: Dirty Dozen watchesAbout 25,000 Record W.W.W.’s were constructed. They were a bit bigger than some of the Dozen at 36.5 mm instead of 35mm.  The Record had a screw case back and a chrome top construction in its case.  The 15 jewel Calibre 022-K movement used a Breguet-curved hairspring, a screwed alloy balance (rather than steel), and the bridge supporting the wheel train was split into three elegant cogs, making this the most elaborate and probably the finest movement Record ever manufactured.

Dirty Dozen watches
The open 9 looks good on the dial, as does the polished dial.
Due to the large number made, there are numerous variants to keep collectors on their toes. The hands were sword-type on early models before they were later swapped for non-radium luminous pencil hands. Records have been seen with sterile dials, different shaped pheons, and three types of sub-dial, rail-track chapter ring, single ring or just 5 second indices, and with (VB) 10034 dials and NATO dials, as well as dials bearing a “T” in a circle (representing the tritium that created the dial’s luminescence).    The 10034 dial reflects the Stores Number for the Record WWW, and this model has been seen with pencil hands.
A number of the dial variations can be seen below.
Record WWW dial variations: Dirty Dozen watches
Image courtesy MWR forum user: obsoletewatchparts


Timor W.W.W. on A.F.0210. Strap: Dirty Dozen watches

Timor is number eight in the WWW manufacturing league table by output. The brand produced approximately 13,000 units.
It has a nice brushed stainless steel case shape at 36.5mm.   The movement is the Calibre 6060 movement, which was based on a highly modified A. Schild 1203 movement.
The hands were pencil shaped, with a lume filled triangular tip, and the 4 is unique amongst all WWW watches.


Vertex w.W.W. on an A.F.0210. strap: Dirty Dozen watches


Close to the Timor in numbers, Vertex produced around 15,000 W.W.W.s. Its Calibre 59 movement was made for the company by Thommen, before being encased in a 35mm steel case. The Vertex features pencil hands, and the seconds sub-dial uses a non-railtrack chapter ring with full 60-second gradation, rather than the minimalist style on the Vertex NATO re-dials.

Dirty Dozen watches


The Vertex has been seen “downgraded” to an ATP watch.

Dirty Dozen watches


Omega w.W.w. on a.f.0210. strap: Dirty Dozen watches
The Omega W.W.W. is clearly one of the best of the Dozen thanks to the Calibre 30T movement, the sword hands and the prestige of the brand.  Prices remain relatively low because 25,000 were produced. It has a rugged 35mm stainless-steel case, and very few dial variants.
Dirty Dozen watches
Below is a MoD 10033 dial.
Dirty Dozen watches
Ck2444 with 30T2RS cal.
Dirty Dozen watches
Caliber 30T2RS .  RS for ” Réglage Spécial ” or regulated to chronometer specifications (though not submitted for final official certification for reasons of cost and wartime expediency).


Lemania w.W.w. on A.F.0210. strap: Dirty Dozen watches

A number of dial variants exist, the name is generally printed with the bulging midsection, but some feature the crown logo above the name. The hands on extant models are either pencil-straight or sword-like as with the Omega.   The sub-dial has been found with or without the railtrack chapter ring, and it may
or may not feature the letter “P” in a circle in the sub-dial, like the Grana.

Common to all is the 36.5mm diameter case with a coin edge bezel and stepped case housing the Tissot-sourced Calibre 27A gilt movement.

Dirty Dozen watches


Grana W.W.W. on A.F.0210. strap: Dirty Dozen watchesNone of the Dozen is more desirable than the Grana, simply because it is by far the most difficult to find. According to Konrad Knirim’s book British Military Timepieces, less than 5,000, and perhaps even only 1,000, were made for the MoD, making it the rarest of the lot.

Since the Grana is rare, and the A.F.0210. strap is even rarer, the photo below of a Grana W.W.W. on an A.F.0210. strap is unique.
Grana W.W.W. on an A.F.0210. strap rare
Aside from the exceptional rarity, one should note that the pedigree of the movement and its superior finishing ensure that the Grana is actually very desirable.   Its stainless-steel case measures 35mm, while the movement is the Calibre KF320. Some Grana W.W.W.s have been found with the letter “P” in a circle in the sub-dial; this is believed to stand for “Phosphorylation” or “Promethium” – the process and element used to achieve luminescence of the watch dial.
Dirty Dozen watches



iwc WWW watch on AF0210. strap

The production count came to some 6,000 IWC’s.   They were 35mm without the crown and had 18mm lugs. They were equipped with the great Calibre 83 movement which was produced from 1935 until 1947.  The IWC is unique in having a snap back as all the others have a screw back to provide the necessary impermeability.  IWC used a lead seal between the case and the case back to prevent water ingress.

Mk Xs can confuse collectors because a number of dials do exist with differences: with or without railtrack chapter ring on the sub-dial, and models where the “5” and “7” are whole, while others have them cut into by the subdial.



Cyma w.W.w. on A.F.0210.: Dirty Dozen watches


The Cyma W.W.W. possesses the most robust case, if not one of the largest, at 37mm – closest to it in this respect is the Longines.    The case is stainless steel.

The watch uses the Cyma Calibre 234.

Dirty Dozen watches


Cyma’s W.W.W. has a stainless-steel coin edge step case without the chrome top, and is visibly more rugged than other Dirty Dozen examples thanks to a wider bezel. Production is believed to be around 20,000, making it the third most common version after the Omega and the Record.


Jaeger Le Coultre WWW on A.F.0210. strap

The dial is gloss finish marked JLC with the long signature.  Its movement is the rather fine Calibre 479, gilt-finished although that was not necessary for a military watch, and the 35mm case is the only one to have 17mm lugs instead of 18mm.

Dirty Dozen watches


The JLC model features distinctive cathedral hands like the Longines – all of the rest having straight hands or slightly sword-shaped ones like the Omega.


Longines W.W.W. on A.F.0210. strap: Dirty Dozen watches

Many point to the Longines as their favorite W.W.W. watch.

The Longines W.W.W.  has  a few characteristics which distinguish it from other W.W.W. watches.  Firstly, the movement is the only one fitted with a shock absorber,  and this anti-shock protection makes it more suitable for daily wear. Secondly, at 38mm, the watch has a more modern appealing size compared to its smaller Dirty Dozen siblings which are around the 35mmm range.   Thirdly, it has a stepped case, and characteristic Cathedral hands.

The model number 23088 was used for these W.W.W. watches, so there were at least 4335 of made from May to December 1945.

The Longines stepped case is synonymous with vintage and iconic Longines watches of the era (e.g. the reference 5681 or the reference 2010).

The name “Greenlander” has sparked some debate. The name implies that the watch was used by the British North Greenland Expedition in 1952-54.  It seems “Greenlander” came about because of the W.W.W. Longines was wrongly referred to in an Italian military watch book as having been used in the Greenland expeditions.

Pictures exist of a Tudor 7809 which belonged to J. P Masterton who was the doctor for the British North Greenland expedition 1952/1954, engraved “J.P.M., B.N.G.E. , 1952-1954”. This watch is one of the thirty used by the expedition, none of which were W.W.W. Longines.

The Longines is one of the rarest W.W.W. watches. Estimates for its actual production are about 5,000.

The mechanical manual winding Longines Caliber 12.68Z movement is gilt brass. It is constructed with 15 jewels, an anti-shock system and a straight-line lever escapement.  It includes an anti-magnetic monometallic balance, a self-compensating Breguet balance spring, and a micrometer regulator.



Ref 1  ‘On His Majesty’s Service 3‘ – Third part of series on Watch, Wrist, Waterproof (W.W.W.), Thomas Koenig and Adrian van der Meijden, Horological Journal October 2008.  pp 441-443.