I have this little Tandorio W10 and it is cool-looking and keeps great time (+5 SPD). I have been wearing it literally everywhere, including fixing my car, for 6 months. It says 'Water Resistant 200M' on the back and has a screw-down crown and screw-down back, and is overall kinda sturdy. I have taken it swimming in the pool a few times without issue but never strapped it to the outside of my bathyscaphe. Is making a 200-meter watch this trivial?

I paid ~$45 for it and it has kinda made me…

has anyone tested the Ali Express type watches to see if their waterproof ratings represent anything?

Let's say, hypothetically, that you inherit an old Rolex with no box or papers or what-have-you. You want to sell the watch and you accept an offer. Is there a consensus method for packaging and shipping it? I assume it involves bubble wrap, etc., but for something costing a few thousand dollars, is there an expectation of a velvet sachet tied with a bow in a leather-bound box?