When this watch becomes insufficiently charged, various warning features are activated and the display changes.

When the watch is fully charged by exposing to light, the function hand indicates "LV.2", and then changes from "LV.2" to "LV.1" and finally to "NG" as the watch charge decreases.

When the watch becomes insufficiently charged, the second hand switches to 2-second interval movement (Insufficient Charging Warning Function).
The watch returns to the normal display (1-second interval movement) when the watch is charged.

If the watch continues to remain insufficiently charged, all of the watch functions stop. At this time, the mode hand and function hand indicate the 0 position (Stop Warning Function).

When the watch is charged by exposing to light, the second hand begins to move irregularly at 2 second intervals (Time Setting Warning Function). The watch returns to the normal display (1-second interval movement) when the watch is charged and the time is reset.