Automatic movement
Hack mechanism (second hand stops when crown is pulled out to set the time - standard feature on all genuine rolexes)
Sapphire crystal
Divers extension to bracelet
Full stainless steel band/case (not stainless steel coated - so will NEVER fade or wear!)
Screws in the links not pins
Solid back with green rolex sticker
Serial/band number on last link/lugs
Fliplock oyster bracelet, steelinox clasp, serial number on clasp
Trip-lock screw in crown with rubber seal
Rolex Luminescent hour markings/hands
Magnified quick-set date
All the appropriate rolex markings