Vintage Eberhard & Co Extra-Fort Chronograph mechanical Cal. 310-8 Steel 36mm Ref: 31003 2 foto buttons and movement are the

buttons and movement are the same edition

I believe that for 65 years

The watch design was conceived for Junghans by Swiss architect

This model has a different  Longines  Logo

Most importantly

Vintage Eberhard & Co Extra-Fort Chronograph mechanical Cal. 310-8 Steel 36mm Ref: 31003 2 foto buttons and movement are theThese watches of vintage Eberhard & Co Extra Fort are very rare models. Case of this watch is made of stainless steel and has slight scratches. Dial is in very good condition, also Plastic glass, buttons and bracelet are in a good condition. Presumably crown is replaced, Movement Cal. 310 8 is in full condition and performs it's all functions very well.