Of course, this idea of the leftover cases with the arrows is one explanation, and has the benefit of simplicity.

I am still doubtful, at least until we see a case with the arrows, that houses a fully-final Caliber 12 (i.e., a Caliber 12 movement with all the Caliber 12 parts). Of course, this will only be a proof when the owner can certify originality (for example, bought from original owner, who kept in drawer for 35 years and never had the watch serviced).

I suspect that we see many instances of Caliber 11-I movements being replaced by Caliber 12 movements . . . this another simple, logical explanation, as the Caliber 12 movement was an improvement over the Caliber 11-I, especially the higher beat and the improved hammer (8220).

Wouldn't it be a wonderful thing if Heuer had records that could enlighten us on these kinds of issues!

Jeff

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