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Horological Meandering

Isn't the Sinn tested to both DIN and ISO standards?

 

I recall Sinn makes a big deal out of the testing done on the U1,
Germanische Lloyd tests both the depth rating and the submarine steel alloy
used (for corrosion resistance, hardness etc), and I remember it was tested
to both DIN and ISO standards but perhaps I am mistaken.

- SJX

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