The Miyota 8215 is a widely used movement in alot of automatic movement watches. It can be found in a range of Citizen, Invicta and also other popular watch brands....

Comparing the 2813 and 2836 movements you can clearly see some similarity between them. The date position sites above the movement making both of these easy to fit a date...

The Asian 2824 movement with date function is one of the common movements found in homage watches. It has sweep second and date feature. Its a medium quality build product...