Audemars Piguet

Gentlemens,

thanks in advance of your attention.

Is there anyone who could explain me the differents betweens these 2 AP RO chrono models ?
they are very similar, perhaps different movements ?

Are price are different ?

thanks for your help !

Best

clutch movement.)

Don't remember offhand what the differences are between the references.

thanks for your reply  and this precision.
Only mechanical movement ? dilas  ? bracelet ?
price are same ? Are these 2 models are available ?
I know the different version on 26300St but not on the  25860St.

thanks for your help

Best