From my collection this ERC Mortima Super Date-O-Matic, 100% original, three bezels, two can be turned, one GMT outside, a tachymeter ring and an diving bezel internally. All ERC watches of this type were made by Mortima in France, strangely they were sold in Germany for a lot more than comparable …
FS ERC Mortima Super Date-O-Matic Vintage Diver
December 25th, 2017