COSC Certification

[rolexsubdate]

Many of our Rolexes are COSC certified and to most of us, it just means that the watch was tested for accuracy and approved.

I bought a watch that came with a COSC certificate so here are some pics of what a COSC certificate looks like and the kind of
information it contains. Each movement gets a COSC number if approved. Most of the data, I don't even understand what
the information is but it sure looks like a serious document.

I wonder why Rolex does not include a COSC certificate wiht with their watches. Not that it matters but extra paperwork just
looks good.