Not all models have the feature to automatically change when the clocks go forward or back. A radio-controlled watch will automatically change if a signal is successfully received. If a radio signal has been received and the hands are showing the incorrect time it may indicate that the zero reference position is incorrect.
This can be solved by performing a complete reset of the watch and then following the zero reference position procedure. For more details please refer to the instruction manual which can be found here https://www.citizenwatch.co.uk/setting-instructions.