Ferrari World Time watch setting, manual is awful and useless

You can find more detail in Google actually
YELLWWORSE Bluetooth Headphones V4 1 Wireless Sports Stereo Earbuds with...

You have to hold down B to set up T1 which is the time the hands will display. Once you see the City and T1 show up on the digital display you can go through the various settings to set time/date etc. Use B to cycle through setup and A to make the necessary changes.

Pushing the crown allows you to set up T2 or the time displayed on the digital section. You set this by choosing the time zone.

Hope this helps