3 Nightstand Mode
If it’s not already enabled, you can enable Nightstand Mode in the Watch app under the general settings. Just place your watch on its side while it’s charging with the side buttons facing up. You’ll see the time and date, current charge level, and any alarms you have set whenever your watch is judged or a button is pressed. I’ve found you can just tap the table it’s on in some instances.
If you have an alarm set on your phone, the watch will slowly brighten prior to your alarm sounding. You can use the Digital Crown or side button to snooze or stop your alarm.
Quick Note: You don’t have to put your watch on its side, but it makes it more like a traditional alarm clock.