As one data point, I frequently look at the second indicator on my phone or laptop (I configured both to show one at all times), but even nerdy colleagues tell

As one data point, I frequently look at the second indicator on my phone or laptop (I configured both to show one at all times), but even nerdy colleagues tell me that's just me, so that's probably just me. I think I'd be fine with having to tap my wristwatch to update the display. It would be cool if it could just show seconds without tapping, but if having to tap means the difference between a few days of battery life and months of battery life (I'm on a computer most of the day so it would wake only a few times a day), then sure.