Hello, I saw this in the picture, it's a 556 with ETA 2824, but I really don't know what logo is on the dial. I believe it has been made for some organisation at the 122th anniversary, but I couldn't find the logo. It looks like Burago, but it isn't. Anyone knows? Thanks!
your looking for a logo not a sinn dial. The logo could have been done after it left the factory or Sinn made a small run for a company to gift employees.