So when I'm home I have my LG G Watch and Pebble on my desk next to each other. In the week I've owned the G Watch I've noticed this twice: When the G Watch is in the dimmed mode the time doesn't always update until I wake it up. The first time it was about 3 minutes off and just now it was 2 minutes off. Both times I tapped the screen right away to wake it and the time updated so I don't know if it would have stayed frozen if I didn't wake it up.