I would question this watch.....

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In my opinion the extract is a forgery; "Lémania", alignment, various black prints, missing "delivered to". I have never seen such a poorly marked caseback as on this watch.
Edited:
 
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RCN ? Like the Rare Chinese Navigational Timepiece?
RCN like Royal Canadian Navy?
CAS would be Canadian Armed Services? Which do not exist, it is CAF.
Could it be? The lost RCN Omega has been found?
 
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That case back is at the TG 195 as well.
After some digging i agree it seems more and more like a civvies version of Tg195 to have a 30/3x
Generally the case back markings are of the issued 30, 30/1, 30/3
Its also true early Series 1 used a very similar caseback, without internal caseback.

Cheers P