The hands and index are coated with a fluorescent material, allowing them to glow in the dark after being exposed to a light source. Sapphire glass is artificially manufactured and is known for its hardness and scratch resistance, preventing unsightly damage, scratches, and cloudiness. Solar cells provide energy for the watch independently and environmentally friendly. Excess solar energy is stored in a battery. You can rely on it: the strap of this watch is equipped with a particularly secure clasp that prevents accidental opening. The stopwatch function measures elapsed time with second accuracy, and the watch can measure up to one hour. With the battery level indicator, you can keep an eye on the watch's battery charge at all times. Hard, durable, and elegant: the solid stainless steel bracelet is a high-quality classic for watches.