Also, how can you build your own laser?
Your friends watch is NOT a Rolex, and not even a fake Rolex. If you ask me, your friend bought a sport watch at K-Mart that resembles some Rolex sports model, so he is bragging about it. I doubt his mom paid $20 for it. And a last note: Rolex is only popular because Americans can pronounce the name. Rolex is one of the cheaper Swiss brands. Rolex range from $3,000 to $50,000 (chump change when it comes to watches). Most Swiss brands are designer brands are far more expensive (Rolex is NOT a designer brand, the founders made up a name that sounded catchy). But if your friend went around saying look at my Patek, or look at my Jaeger nobody would have a clue what he is talking about, so that is why he says look at my Rolex.
The vast majority of Rolex watches is know as perpetual movements, that is to say that they are a mechanical watch that winds itself as a result of converting kinetic energy into pertential energy. Put simply that means as you move the watch mainspring is wound. This quite clearly shows that Rolex watches are mechanical ( the vast majority) The dial of a Roelx watch would show the word perpetual, Oyster perpetual or precision indicating that the watch is mechanical. Rolex did produce what is know as an Oysterquartz, on the dial of this watch you would see the inscription Oyserquartz clearly indicatin that the watch is battery powered and fitted with a quartz module.Rolex would and have never put the word quartz onto a watch that contained a mechanical movement this would immediatley indicate it was a fake.
