An interesting development - member mappleluna brings to my attention a thread on the french-language watch forum Chronomania on the topic of these fakes.
http://forum.chronomania.net/mix_entry.php?id=210296#p211373
In brief, the question of authenticity of these models was raised and one of the members had the idea to write UG, providing pics of one of the fakes which for some reason I can't cut and paste here, but they are from this sales listing:
http://cda.chronomania.net/forum_entry.php?id=102553).
This is the reply received in its entirety, with my translation following:
Monsieur,
Nous vous remercions de votre message et vous informons que, sur la base des photos publiées dans l’annonce, la montre présentée semble authentique.
Universal Genève a en effet produit une série limitée de cette montre.
Par contre, la couronne ne semble pas d’origine ; les nôtres présentent toujours notre logo.
Quant au numéro de série, il est en effet possible qu’un même numéro ait été gravé sur toute une série, donc sur plusieurs montres.
Demeurant à votre disposition, nous profitons de ces lignes pour vous remercier du soin apporté à la modération de votre forum et vous féliciter pour la mise en valeur de nos montres pour les collectionneurs.
Nous vous prions de recevoir, Monsieur, nos salutations les meilleures.
Universal Genève SA
Case postale 128
1217 Meyrin 2
+41 (0)22 307 78 80
Dear Sir,
We thank you for your message and we inform you that, based on the images provided, the watch in question appears to be authentic.
Universal Geneve did in fact produce a limited series of this model.
In contrast, the crown does not appear to be original; ours always bear our logo.
As for the serial number, it is possible that the same number was engraved on every watch in the series, thus on more than one watch. [the writer evidently pointed out that the serial number was the same on multiple examples of the watch].
We remain at your disposition, and we take the opportunity to thank you for your efforts moderating your forum and congratulate you for hghlighting the value of our watches for collectors.
Very sincerely,
Universal Genève SA
Case postale 128
1217 Meyrin 2
+41 (0)22 307 78 80
In light of the surprising reply, the gentlemen of Chronomania are preparing a followup letter of clarification.
I'm interested in your reactions and suggestions for followup questions.