breitling chronomatic

[dazzlet]

i have a breitling chronomatic watch that i may be interested in selling but i am not sure what i should be looking at for the asking price if anybody can help that will be excellent the model number is d13352 it has a tan leather original strap and it is in excellent condition i do have the certificate of authenticity with it thanks .
i do believe its made from gold and stainless steel

thanks