For sale is this Eterna-Matic “hidden crown" no date automatic. The serial n. dates it to circa 1953 Diameter: 34.9mm Unpolished all steel crisp case with super defined edges and bevels. Some signs of tool wear on the caseback. The dial has turned in a lovely gold colour with an homogeneous even patina. Dauphine hands and typical "calatrava" indices. The movement is in working conditions, service history is unknown. I'm asking 180€ plus shipping to the EU only, the watch is located in Italy. i'm obviously happy to answer any questions. Many references avaliable on request. Thanks for looking!