This conversation reminded me that we have in the archives a Reference Table for the "Economy" models.

You might find this interesting -- http://www.onthedash.com/docs/EconomyReferenceTable.html

Jeff

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: Hello fellow collectors,

: I stumbled over a vintage Heuer at ebay. I did some research and I
: think that it might be a Heuer 7721 N. But I couldn´t find that
: much information about it.

: Can anyone tell me if the watch is a 7721 N and say something about
: ist context. I would love to join the vintage heuer club, but at
: the moment I am pretty unsure about the authenticity of the
: watch.

: As I can not find any reference Prices I would love if you could
: tell me what price range the watch should be. At the moment it
: is listed for 1,800.00 USD

: Thanks in advance for your feedback.

: Best regards
: Frederic