Why not? The battery lasts about 2 years, and the LCD numbers slowly (and very noticeably) get darker over a period of weeks before it dies, so you have plenty of notice.
unless it lasts more than 100 years it could reasonably fail within someone’s life. Nuclear energy is nice because it is more or less the only energy source that can do this.
Battery-powered is never reliable though.
Why not? The battery lasts about 2 years, and the LCD numbers slowly (and very noticeably) get darker over a period of weeks before it dies, so you have plenty of notice.
unless it lasts more than 100 years it could reasonably fail within someone’s life. Nuclear energy is nice because it is more or less the only energy source that can do this.
There are watches that don’t require a battery. Some require you to rewind by hand, by turning the crown, others are powered by wrist movements.