Anybody knows what are the 2 small marks next to Au 750 on the caseback of watches?

Nov 28, 2018,00:42 AM

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 smile

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Think they'll be assay office marks

 By: jml_watches : November 28th, 2018-01:04
Pretty much all precious metal items have them. They tend to be country and even city specific Regards JML

Google gold stamps and markings

 By: Bruno.M1 : November 28th, 2018-01:46
You’ll find thousands of them Depending manufacturing date, region, brand ...


 By: Tony.A. : November 28th, 2018-04:59
These are the Swiss gold hallmarks (proof of authenticity), and that's what they look like. ...  

Is the 750 marker

 By: Jocke - Bad Santa : November 28th, 2018-09:27
the dog from behind?


 By: p.boxster : December 23rd, 2018-08:00

Thank you all! very informative

 By: JLG22 : November 28th, 2018-05:59
The best things in life is to learn new stuff special thanks to Tony! I love knowing what the dots actually look like!

You are welcome:-) [nt]

 By: Tony.A. : November 28th, 2018-10:36

I believe currently four stamps/marks are a requirement on a precious metal watch case in Europe

 By: LS : November 28th, 2018-14:58
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 (...