Tissot PRC 100 Solar Quartz Watch - Blue - 39mm

No, the Lightmaster Solar Quartz movement is designed to be powered by light, eliminating the need for periodic battery changes.

When fully charged, the watch can typically run for several months in total darkness before the power reserve is exhausted.

Sapphire crystal is extremely hard and highly resistant to scratches from daily use, though it can still be damaged by diamond or extremely hard materials.

The watch is designed for daily water resistance, but you should check the specific ATM rating on the case back before submerging it in water.

No, the dodecagonal bezel on the PRC 100 is fixed and decorative rather than a functional rotating timing bezel.

Yes, any 20mm wide strap will be compatible with the lug width of this model.

Place the dial in direct sunlight or under a bright desk lamp for 12-24 hours to recharge the internal power cell.

This indicates the End of Energy feature is active; the watch requires an immediate light charge to prevent stopping.

Ensure you are using standard 20mm spring bars and a spring bar tool to avoid damaging the lugs.