Casio Quartz Watch - Black - PRW-6100Y-1

Yes, it is designed for daily water exposure, though it should not be submerged in deep water or used for scuba diving.

Battery life varies based on usage, but typically lasts several years under normal conditions.

Yes, the band is compatible with standard replacement straps of the correct lug width.

This model focuses on a clean analog aesthetic and does not feature an electronic backlight.

Its black, minimalist design makes it highly versatile and appropriate for many formal or business environments.

The battery likely needs to be replaced; take the watch to a certified watchmaker.

Ensure you are using a light touch and pulling directly outward; do not force it.

Use a dry microfiber cloth to gently wipe the crystal lens.