AP Royal Oaks rep FAQ thread.

[kefka]

Does this gen movement look correct to use on the 15202? I know I would need gen dial, hands, date wheel and custom 22k rotor. Only asking because it’s coming from an older watch. Wondering if that matters

If its the 2120, it doesn't have a date function. So No

 

[kefka]

Nvm it's the 2121, yes it works.