The crystal is that glass cover atop that protects the watch's inner workings and keeps dust, moisture, and impact from reaching the watch face. These crystals come in a range of materials, including acrylic, mineral glass, or sapphire. Depending on the type, the difference will vary in scratch resistance and clarity. Sapphire crystal is very prized for being hard and not scratching with anything. This is the one reason luxury watches opt for this material.
The crystal protects the inside structure of your delicate watch. It lets you admire the design clearly without interference by placing a transparent, smooth cover over the dial. It's an integral part that fuses practical protection with aesthetic beauty, thus enhancing the watch's overall look in general.
