I got my doxa watch from my grandfather and i would just like to know its details and average price.

It is gold doxa, about 40 years or maybe more old. On front under the number 12 it says :

on the back it has numbers: 833340

on the wristband it says camel grain 20 and it is in mint condition.

it is similar to that but not exactly the same:

mine is gold and has different wheel for setting the clock