Write down the four-digit module number from the watch back, and go to this link for full info in PDF format:
http://world.casio.com/wat/download/en/manual/
Good luck, Bill
Hi
Manual gives an idea but that's not all :)...
Instruction step by step with photos how change from AM to PM or 24 hr time you'll find on :
CITIZEN Ana Digi Temp
A very similar model
by courtesy and permission of the 365d24h60m.com site owner
Best...
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