W154
77
Each dot represents one measured watch.
So for example I measured four IWC cases. The biggest two are great original examples, the third is my IWC factory refinished case, and the fourth is a polished example. The polished one was around 0.15mm smaller than an unpolished one. The biggest mystery is the 38.5mm Cyma. That’s my case and the measurement is certain. It wasn’t issued so might be something non-standard but I have no idea.
There are also some other discrepancies but perhaps that’s measurement variations as some guys sent me measurements of theirs. I obviously don’t have control over their equipment (and technique LOL), but hopefully with more samples it will be clear what the outliers are.
Edit: here’s the strange Cyma. There’s been some work around the crown tube, but I don’t see any evidence that the whole case has been reworked. And besides it would be quite a big job to make it bigger ! Other than the size the engraving looks thick, but it also look quite correct to my eye. It came in a small lot of four partial watches from Berlin, the other three being WWW Record, Vertex, and Lemania, so the circumstantial evidence is that it’s at least legitimate.
Picture of the Day: Grana WWW.
Credit pictures: SSong. The Grana WWW is the responsible of the fact that many of us who want to get the whole Dirty Dozen Collection of Military watches from 1945, issued for the British Army, cannot achieve this collection. Much rarer than the Vertex, C...
The Grana is very elusive...
The Grana is the most difficult of “The Dozen” to find. Just be aware of the use of radioactive Radium-226 on the dials. All dials produced were black.
Thanks Nicolas !
While we see every now and then some of the Dirty Dozen, the Grana is always and only in photos !! Very nice one as usual ! BTW, do you have any bad looking vintage in your collection that you could share with us, too frustrating to see how perfect the mo...
Nice looking oldie.
Love the look and the patina. A 38/39 mm version looking exactly like that would be great. Thanks for sharing. Vte
I was wondering when you'd get around to the Grana, Nicolas! . . .
. . . never seen one in the metal, so your excellent pics are deeply appreciated. Would love to have just one of the Dirty Dozen, and happiest with this most obscure iteration. There . . . I said it. Not the Omega. The Grana. ;-)
The Longines rightly claims merit in terms of case size and arguably . . .
. . . the most compelling movement of the lot, although there's much to recommend the IWC and Omega iterations on that front. But in terms of desirability from a collectors standpoint, the rarest of the breed is personally persuasive. The military I'd mos...
All well and true, Nicolas. How's it going on the search . . .
. . . for an Omega chronomètre?
Excellent! . . .
. . . can't wait to see your trophies, even if they haven't been bagged yet ;-) . . .
The most well-known reference table for WWW case sizes has some small errors.
Nothing more than a millimeter here and there, but it’s nice to know what the reality is. So I organized for some samples to be measured to get a definitive answer. Unfortunately I have only a picture with half the samples included as my laptop died and t...
Each dot represents one measured watch.
So for example I measured four IWC cases. The biggest two are great original examples, the third is my IWC factory refinished case, and the fourth is a polished example. The polished one was around 0.15mm smaller than an unpolished one. The biggest myster...
That’d be great as I only have two JLC samples.
But you ideally need a calibrated gauge that will read to X.XX mm. If you’re not sure you can at least spot check your measurement gauge against a brand new coin which has quite tight tolerances. One euro should be 23.25mm and two euro should be 25.75mm. ...
