Fact sheet:

[Source: Rolex Forum]

– You cannot overwind an automatic watch.

– Your automatic watch will not keep running with just wearing it.
(You have to actually move enough to keep it wound.)

– The date can change anywhere between 11:55pm and 12:05am. 
(If it changes around 12:00pm, just move your hands 12 hours forward.)

– Sapphire crystals can scratch, chip and shatter.

– Oils will dry out inside the movement over time.
(even though people claim it to be airtight/ having synthetic oils which shouldn’t dry, etc.)

– You can turn the crown both ways while manually winding your watch. 
(It only works one way, but you don’t damage anything the other way.)

– You can turn the hands of your watch backwards when adjusting the time, or date. No worries!

– You can quickset the date any time of day on any Rolex.
(Be aware that with some other movement, like ETA this is not always possible)

– Any Rolex will loose it’s water resistance rating if gaskets aren’t replaced on a regular basis. Gaskets do deteriorate over time.

– Rolex does not sell watches on-line, and does not allow AD’s to sell over the phone or internet.

– Authorized Rolex repair centers and watchmakers are not allowed to work on watches with after-market parts on them.

– Rolex will not honor a warranty, without the original paperwork or card properly filled out and belonging to the original purchaser.