An early 70's version of the Yema Wristmaster. In stainless steel monocoque case with characteristic eclipse shape, nice blue elapsed time bezel and typical 70's brownish orange colors on the gilt black dial. The hands used are tipical diver hands which seem to be (partly) relumed. Not sure if the sweep seconds hand originally had a green lume. Some pictures on the web show an orange lume matching the rail track.

Wristmaster series