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Casio also made watches with incredible battery life. I have had a Casio Edifice (EFA-111, 10-year battery) for 15 years, with no change of battery. Amazing tec

• kijin 7y ago
  The ones with solar charging technology ("Tough Solar") are even more amazing. I used to have an older version that failed around the 10-year mark, but newer versions are said to last over 20 years if regularly exposed to light. Solar power unlocks so much potential that are usually limited by battery life in quartz watches. Since much more power is now available, they can make watches that automatically detect the current location by GPS, sync the time over radio, etc.
  • NKosmatos 7y ago
    Having a tough solar pro trek Casio I totally agree, but keep in mind that the long battery life is due to the very low power consumption and sleep function. Around 8hrs per day my watch is in standby mode and then for 95% of the time it only displays time/date. It’s only when you use the extra functionality/backlight that the battery starts to drain.