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
Sold at Auction: Vintage Casio Telememo 30 World Time Illuminator Men's Watch WORKS
Casio Edifice EFA-110 2747 Dual Display Telememo 30 World Time Watch – Vintage Radar