HELP - What Model from the 80's is this?

Hi,

I'm became as present the watch of my grandfather from my grandmother. It is an original Omega and i guss it is from the late 80's but I dont know what model it is. Anfourtunatly is is not working and i have no idea why. I dont know if it is just the battery or something else. As I dont know the model, i can't look for a manual etc... I will definetly make a service by a professional but i would like to know first what model it is and if it is at least automatic or mechnical.

Thx a lot!

Thank for the quick answer. Here a picture of the back. There is nothing written on it. Opening the watch is out of question for me. I have no tools and, as you sad, it is solid gold.

Take it to a watchmaker and they will help you get it sorted. That snap back case is not something to try and open yourself.