You need to know how to set the time on your Rolex watch but can't find your booklet. Since it runs so well, you may only need to do this for daylight saving time. Don't worry if you can't remember how you accomplished your goal last time -- it's a simple process.
Turn the winding crown on your Rolex watch counterclockwise to unscrew it. You should feel it pop out into the winding position. If you don't feel it pop out, check to ensure it cleared the threads. Your watch is in the winding position.
Pull the winding crown out to the last notch, as far as it will go; this is the time-setting position on your Rolex watch. Watch the second hand stop and move to the "12."
Set the time by turning the winding crown clockwise to the correct time. Avoid changing the date accidentally if your watch has this option.
Push the winding crown down once you reach the correct time. Screw the crown down until it's just tight. Don't tighten the crown too much; once you feel resistance, it's secure. This makes your watch waterproof again.