Zenith

Can somebody tell me more about these ? What are the differences ? some have a 'long' winding crown, other a bigger but shorter onion shaped crown Others seem to have luminova when other's don't ( or is in the last case the luminova removed ?) some have t...  

Sorry I can't help much on this. As far as I know, production started in 1909 and there were three main types. The non Special, which did not have a second hand. The Special, like mine, which had a sub-dial second hand at 6:00pm. The 1A Extra Special, whi...  

the luminescent material on these can only be radium. They sell for between USD1 and 2K, anything more is extortion. No one to my knowledge has established a chronology or a typology - one is sorely needed.

Original dials would have orange numerals and hands indicating these were radium, but I can only suspect that perhaps they were recalled, or replaced at the owners request, with luminova after the horrific "radium girls" tragedy. This is one case where I ... 

thanks for your reply LouS, Good to have an idea about the price because I almost paid too much :-) A secondhand dealer has one in stock but it was imo a bit too much. the condition was good but still too expensive. Thanks for giving me the confirmations ... 

I definitely support the request to have the Zenith military timepieces adequately referenced and documented. This does not only include the wristwatches, but I think also several dashboard instruments. I remember that the father of my (then-) girlfriend ... 

Like you, Dean and LouS said …. there is not much known about these. When I read Mr Rossler's book, I find everything about the El primero's. Production numbers, dates, limited editions, … everything ! but even in this great book we learn almost nothing a... 

just picked this up the other day, thought I would take a quick shot ...will share more later. Type 20 Montres D'aeronef Type 20 ...  

to learn more - what movement is hidden inside - Cal. 5011 perhaps? Cheers, Magnus

I decided to make a new thread...hope you enjoy I wish it was a 5011K... They didn't make these until the 60s I believe. This was made in 1939. I am on the look out for a 5011k pocket watch, I let one get away from me 7 years ago, what a mistake.