So I have this C80… but on fresh batteries, I can't seem to get any button to work, except the light. All others are unresponsive. I tried poking directly at the module
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watch.at.me on Instagram: "® World's first Casio calculator watch ‼️ . Rare Collectible Item Vintage Casio C-80, originally released in 1980 🔥 Features : • day, date, month • AM-PM, 12/24 hour •