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 MQ-24 series watch battery replacement – Jeff Werner
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BUY Casio 5 Alarms 10 Year Battery Digital Watch MWD-100H-9AV, MWD100H | CASIO Watches Online - Red Deer Watches