1950 Eberhard Extra-fort, 40mm. case.
Eberhard is a Swiss company founded in 1887. Known for its high quality work, Eberhard usually came up with good solutions to problems till then considered as minor by most people. It is also one of few houses that manufactured its own movements and it didn’t purchase any components from external suppliers. Eberhard pre Extra-Fort was a very good watch at the time it was released but soon afterwards it simply disappeared.