Was given this Rolex. Fake? Real? Value?

[Knapp305]

Hi everyone!

Since i'm a newbie, i attached a couple small pictures. That's all i was allowed...


This was given to me...

Rolex
Oyster Perpetual
Day-Time

Has diamonds inside the face. Gold face with silver and gold striped wristband.

A green Rolex sticker on the back of the faceplate saying "Rolex 20646". The emblem is on it too. It's not a hologram sticker at all.

Next step would be taking the band off to see the mfg info. Thought maybe the 20646 would be that same info. Any idea what the value may be? I'm new to the Rolex world so any input would be thankful!!