How to prevent a solar watch from running out of energy

A Solar watch runs out of energy. What to do?

Try to recharge it often, and make sure to expose it to sunlight by a window for 5-6 hours once every month with the dial facing the sun.

When not wearing the watch, make sure to put it in an environment where it will be exposed to light for recharging.
In order to avoid trouble such as stoppage, please recharge by exposing it to sunlight by a window for 5-6 hours once every month with the dial facing the sun.

Please be careful of the watch running out of energy, especially in autumn and winter since sunlight weakens, and the watch is likely to be hidden under long sleeves.