“I’ve never seen it jump on my wrist - I’m always a second late or so but I assume it works great as it’s back on the other side after the hour so it’s jumping just fine!”
“Do not buy this watch. It is only useable during the day. in the evening, you cant tell time. It wont even glow in the dark. I wore it for 2 hours and went out to run errands and even with the street lights, its next to impossible to tell time. I had to take out my phone each time to see what time it was. A very unique design and idea but thats where the usability stops !”