Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL
Casio SGW-500 Battery / SR927W x 2
How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD | DIY | How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD
Casio Original Men's Watches G Shock | Casio Original Luxury Men's Watches - Casio - Aliexpress
Casio MQ-24 series watch battery replacement – Jeff Werner