I have eta 2782 caliber wrist watch with date @6
the problem is it will not go past 11:15PM hands will not advance but the second hand continue to work fine, Im positive its the date mechanism at fault
but where and how to deal with it.

Check the cannon pinion.

thanks Bill I need the cannon pinion
its part#242
https://ihc185.infopop.cc/eve/f...6036171/m/6063922687