Where can you get hourglasses (and sand timers of other durations) that work and are relatively accurate as timepieces?
I bought this hourglass in a consignment shop recently, it appeared to take roughly an hour. Sadly when I flipped it over the sand got stuck repeatedly, it only works in one direction I guess, which isn't useful. Can this be repaired?
These are calm tech! I like that they don't have notifications, they just remind me that time is passing.




