The best way to replace the buttons on a CFX-200 is to buy a used CD-401.
This is an earlier metal databank watch that uses the exact same case,
buttons and band as the CFX-200. The buttons are easily transferrable. You
can buy a CD-401 relatively inexepensively through Ebay. I recently
purchased one for $24.00 (US). You cannot order these parts. When lookin
for one, the key words should be Casio and "calculator" or "data
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