Yeah El Primero is a pretty good name. This is pretty cool too.
http://watchestobuy.com/zenith-a386-el-primero-1969/
$10,750, so not exactly for the faint of wallet, but rad nonetheless.
Someone above was looking for a place to buy a vintage Omega and that watchestobuy.com has several dozen for sale. I've never bought anything through them myself, but I know they are based in Canada. Prices are in US dollars and that's gotta sting, but you could avoid all the pleasant duties and added fees that are inserted into your rectum when you buy something like this from the States.