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How to identify Cal.11 or 12 w. closed bottom
In Response To: thank you (nt) *NM* ()

You can figure out weather the watch has a Cal.11 or 12 even with a closed bottom:
when you want to change the date, Cal 11 needs to be turned 24 hours. Cal.12 needs only a re-turn before ca. 9 o`clock to be changed when turned forwards again over 12 again.

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