JLG22
769
Anybody knows what are the 2 small marks next to Au 750 on the caseback of watches?
And does it always exist? because I ve seen pics on the internet where the caseback doesn't show those marks. My pano has them but I never knew what they meant or stood for.
thanks for educating me 
Anybody knows what are the 2 small marks next to Au 750 on the caseback of watches?
And does it always exist? because I ve seen pics on the internet where the caseback doesn't show those marks. My pano has them but I never knew what they meant or stood for. thanks for educating me ...
Think they'll be assay office marks
Pretty much all precious metal items have them. They tend to be country and even city specific Regards JML
Google gold stamps and markings
You’ll find thousands of them Depending manufacturing date, region, brand ...
Correct!
These are the Swiss gold hallmarks (proof of authenticity), and that's what they look like. ...
Thank you all! very informative
The best things in life is to learn new stuff special thanks to Tony! I love knowing what the dots actually look like!
I believe currently four stamps/marks are a requirement on a precious metal watch case in Europe
I was curious about this when I bought my ochs und junior moon phase. Here is an interesting blog post from Ochs und Junior regarding the process of getting their cases assayed. And below are pictures of my ochs und junior in silver with the four marks (...