The watch is equipped with energy-saving Bluetooth technology that offers power-efficient data exchange at the push of a button. The watch can be wirelessly connected to a smartphone via Bluetooth, allowing access to a variety of useful functions. Once the watch is paired with the smartphone, the time is automatically set, displaying the current local time worldwide. Independent and environmentally friendly, solar cells provide the watch's power supply. Excess solar energy is stored in a battery. The hands and/or the index are coated with a fluorescent material, glowing in the dark after being exposed to a light source. With the dual time display, you always have a second time zone at a glance. The stopwatch function measures elapsed time, lap time, and end time with an accuracy of thousandths of a second. The watch's measurement capacity extends up to 24 hours. In this memory, you can store measured stop, lap, and split times along with the date and retrieve them later.