Who Tested Your Watch? A Guide to the Watch Industry’s Quality Marks
People often wonder just how good their watches are. A quality seal can help provide an answer: it shows that the watch has passed a test for its timekeeping ability and, in some instances, the quality of its finishing. COSC and the Geneva Seal are by far the best-known issuers of quality certificates, but there are many others. Some, like these two, test watches from multiple brands; others, such as the Patek Philippe Seal. Here's a look at 11 quality-testing systems.COSC Certificate:Switzerland's Contr?le Officiel Suisse des Chronom��tres, or COSC, is the best-known watch-certifying organization. The COSC procedure lasts 15 days. Watch companies send their movements to COSC uncased. COSC then assigns each an identification number and its employees apply a generic dial with reference points that help an optical sensor track the watch's seconds hand. Each movement is wound mechanically (automatic movements must remain rotor-less), then given a rest period of 24 hours before testing. The

How to proceed
Hey guys. I bought a pre-owned alinghi carbon a couple of weeks ago and a couple of things are wandering inside my mind. Here's the first one: even though the watch is in perfect condition and is working fine I'm wondering if I should send it for maintenance to clearwater?. Here's the second: I have a chance to either trade it for a brand new grand prix carbon or should I just use trade money to get me a deepsea. So here you have it. Any advise?? Tx.

My dad was given a Patek...
He used to collect Rolexes, and is beginning to get back into it, which is cool. His wife gave him a Patek Phillipe and I am not sure what model it is...it has a few complications on the front and if you turn the watch over theres a lunar star chart moving thing on the back. Any clue what model that might be? its rose gold.Also, do Pateks tick or sweep like a rolex?thanks.

Which carrier would you choose to ship a Tudor from USA to Switzerland?
I'm selling a Tudor right now and the buyer is located in Zurich, Switzerland (I'll be shipping it from Texas). I've never shipped internationally before and am a bit nervous about it. For those that regularly ship internationally, which carrier would you recommend? I'd like to be able to insure the package, but I've heard there are insurance limits on international shipping. Is that somewhat accurate?Thank you in advance for the help.

Question about sapphire crystal 34 mm
Hello, I have a Tudor 74020 date, 34 mm, and the sapphire cristal is damaged. My question is if the crystal is the same as the Rolex 34 mm is, so as to be more easy to find one available. Thank you very much