Yesterday I came across this post, which might be interesting to you: https://hackaday.com/2017/02/15/chronio-diy-watch-slick-and-low-power/ https://hackaday.co

Yesterday I came across this post, which might be interesting to you: https://hackaday.com/2017/02/15/chronio-diy-watch-slick-and-low-power/ https://hackaday.com/2017/02/15/chronio-diy-watch-slick-and-... Actually, if you search for "watch" on that website, you'll find plenty of stuff. Maybe you can find some inspiration there.