- Dec 24, 2012
The number says "143".Welcome to the board, Rinkor
That punch mark below the 14K assay mark looks like a "responsibility" hammerhead mark. If so it should contain a number which might help us to identify the case maker.
That is a company named Classicor SA of Le Locle and I believe these "responsibility marks" date the case to 1934 or later.The number says "143".