I have a Casio Telememo 30 from 2004. Never opened or serviced and the battery was never changed. I got it from my grandmother for my graduation and I never took it
How To Change Casio Watch Batteries In Two Minutes! - YouTube
Casio Men AEQ-110W-2AVDF – Yaser Rushdi Watches
Casio Telememo 30 Watch Men Silver Tone Analog Digital 38mm AW-81 New Battery | eBay
Casio Illuminator battery change. | UK Watch Forum
Casio TeleMemo 30 WR 50M Quartz Digital Japan FORPART/REPAIR/WATCHMAKER#. | eBay
Casio AW80 Telememo 30 Watch 10 Year Battery 3 India | Ubuy
Casio AEQ-110 Battery Replacement and Time Setting | Watch Repair Channel - YouTube
Casio AW80D-1AV, Telememo 30 Watch, 10 Year Battery, 3 Alarms, World Time | eBay
Alastair Irvine 🌻⭐🍒☂️💚 on X: "Battery replacement for my #Casio Telememo 30 smart watch. (No connectivity; holds 30 names & numbers.) My constant companion for 24 years. https://t.co/ppQqUm1hKN" / X