If the luminous light of the watch cannot be displayed or is not obvious in the dark night, it may be because the watch does not absorb enough light during the day, which leads to the lack of light that can be released at night. It is recommended to receive light for a period of time during the day, and it will be more obvious at night when it presents a luminous light. If the watch still has no luminescence or the luminescence is not obvious after irradiating with light, it is recommended to contact Lucky Harvey for watch warranty service maintenance.

To activate the watch luminous effect, you can put the watch under stronger sunlight or light for a period of time, let it replenish energy through irradiation to automatically glow at night. The intensity of the luminous effect may vary depending on usage habits and environmental factors, so please refer to actual usage.

Sapphire mirror has anti-wear and anti-corrosion qualities, although the hardness of the sapphire mirror is very strong, second only to diamonds and 7 times the hardness of steel, but it does not mean that it will not wear. Try not to touch diamonds, granite, concrete, grinding stones, sandpaper, nail files, etc., so as not to scratch the sapphire mirror of the watch.