Automatically deactivates the Auto EL backlight function when surrounding light is sufficient, and activates it under dim light or dark conditions.

Even temperatures as low as -10 °C have no effect on this watch.

Invisible solar cells in the watch convert light into energy and supply all functions. A rechargeable battery provides the necessary capacity for operation in poor light conditions.

In Europe or North America, in many parts of Canada and Central America or Japan - once the watch has been set to the local time zone, it receives the relevant signal ensuring that it always shows the exact time. In many countries the summer and winter time is also shown automatically.

A direction sensor measures the magnetic north and displays north on the watch, as well as the direction in which you are currently moving.

A built-in sensor measures the local air pressure and calculates the current altitude.

After entering the local data, the moon phase and moon age are dynamically displayed on the watch.

After entering the local data, the tide graph will be dynamically displayed in a hourly cycle. This allows you to check the tides in order to plan your activity in advance.

A built-in sensor measures the local air pressure and shows it on the display. This can be helpful, e.g. while hiking, to recognise weather tends at an early stage.

A built-in sensor measures the local temperature and indicates it on the display.

Depending on the model, up to 40 sets of elevation data can be stored in the watch's data memory and re-accessed at any time. Each of these data sets consists of a measured altitude as well as the date and time. In addition to the individual altitudes, the maximum and minimum altitudes during a measurement are also stored.

The world time function displays local times in up to 29 different time zones.

Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.

radio-controlled

CTL1616