Few is an understatement. My solar atomic g shock hasn't needed a battery replacement in the 15 years I've owned it.

They're rated for 10-15 years though, so I guess I'll see how it's holding up in another six months.

I would really like to own a GShock, but I just can't get over how small the digits are. I know I would be frustrated reading the time from a space that is maybe 1/15 of the watch face surface area.

My $5 Casio has a "10 year battery"

Yeah mine too. I've had it since 2009 and only now the screen is starting to go a bit dim.

I'm really amazed every time I think about it.

normal battery G-shocks are rated to last 2-3 years

My dream Casio would be non-smart G-shock with Memory-In-Pixels display and solar battery.