Its called the Ritot projection watch and they are just now in the final stages of getting funding. You can support their efforts here.
Ritot will help you to stay on top of things with vibrating notifications, messages and alerts. Dismiss a notification with a shake of your wrist.
Incoming Caller ID
Silent vibrating alarm and timer
Notifications for any other Apps
You can set notifications in the special Ritot App for your phone. All notifications are easily to set, turn on and off.