These two gold beauties belonged to my grandfather. The left one is about 37 mm and the one to the right 35 mm. Both are "clean" all around with no markings on the back. The crown on the smaller one has fallen of; as you can se it does not have the Omega logo on it, but rather a star-(ish) pattern.

So my dear forum companions, what do you think or know? When are they from? Model? What is their value (apart from the value of my great satisfaction of owning these treasures ;-)

Appreciate your input!