Can someone make a super-low energy, classic looking watch with GPS? For people with Alzheimer's / Dementia. Could make a kids version too. They have GPS watch

Can someone make a super-low energy, classic looking watch with GPS? For people with Alzheimer's / Dementia. Could make a kids version too. They have GPS watches, but the battery seems to last maybe a day or two. My dad isn't going to remember to do that, so I would need to do so on a less frequent basis. Maybe with some self-charging based on user movement (they used to make self-winding watches)? Keep GPS off until receive (authenticated) SMS message asking it to turn on, then report back position? Or maybe just triangulate position based on cell towers every 15 min...