[panopticon]

> It's also the only timekeeping device that will still work after three days away from an electric plug

I get your point, but I can easily get >2 weeks out of my Garmin Fenix or over a month if I put it in battery saving mode.

[aredox]

It won't do that in 5 years, let alone 10. You'll be unlikely to find a replacement battery, too.