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Vintage Heuer Discussion Forum
The place for discussing 1930-1985 Heuer wristwatches, chronographs and dash-mounted timepieces. Online since May 2003.
Thank you for pursuing this with TAG Heuer and thank you for sharing your findings here. It would be interesting to try to sort these "batches" and see which version of the printing goes with which serial numbers. But this may not be realistic.
Sorry that others did not reply, but the Solunar remains a bit of a niche watch, without a big following. So it may have been a conversation with yourself, but I know that others will benefit from your postings.
: I just received a reply from the Heuer customer service: Here is
: what they say: "tolerances at the time of manufacturing
: were more loose, so different batches might have different
: printings..." So much for precision time keeping! I was
: correct in my assumption that the Swiss are not into oceans...
: Great conversation with myself!