Questions about Casio Vintage

Hello, this is an A168WE, so normally only in 36 mm. MfG

it apparently cannot, even if it is advertised as such. see e.g. https://uhrforum.de/threads/casio-a100we-1aef-auf-24-modus-umschalten.484298/ https://www.reddit.com/r/casio/comments/plqqz7/24_hour_time_on_the_a100_series/

In this case, please contact our customer service directly so that you can be helped accordingly. https://helpcenter.galaxus.ch/hc/de/requests/new