Watchface for Hitachi employees.
NOTE: This app is no way affiliated to Hitachi in anyway. 

Bottom Right:
 Battery status (Scale of 1 to 10)
Bottom Left:
 Bluetooth Status ('B' measns a connected)
 If Bluetooth connection is disconnected or connected, the vibration is started to emit during 10 second.
If you want to abort the vibration, twist your wrist a few times.

I create a simple Watchface for my middle-aged eyes.

1st line: Time
2nd line: a day of week and day
3rd line: Month and year
Bottom line:
 BlueTooth connection
 Battery Status

If bluetooth connection is disconnected or connected, the vibration is started to emit during 10 second.
If you want to abort the vibration, twist your wrist a few times.

Refer to Website for more detail.