Here is an excellent example of a not so easy to find Robot. It is Swiss Made with 17Jewels unadjusted, dating from the late 1930's. I believe it still has the original bracelet which is still in very good to excellent condition 12K gold fill EDK stamped on it.
This has been serviced. It has had a new seconds wheel installed and a new balance staff installed. A new crystal installed also.
Measures 27mm lug to lug, 21.8mm wide and 10.7mm front to back.