Stem on my rolex won't screw all the way down

Contact a local watch repair shop, this should be able to fix this for a small fee.

Take it to a registered Rolex dealer it may cost a little bit more but it will be worth it in the end and it will be done by a professional, hope this helps, Paul.

The Rolex time change is done after three clicks when you pull the winder. If the winder can actually be pulled out of the stem (separate) the damage is serious.
Sorry. Only an authorized dealer can get the parts for it to be repaired.

A standard ladies rolex should have just one stem and crown on the side. Occasionally the crown is a screw down crown. Try to pull the crown out if it does not pull out try to pull and unscrew it at the same time. There are two settings one you pull the stem all the way out and that should set the time, if there is a day or date setting, you push the stem halfway in turn one way for day and other way for date. Please let me know if there are any other buttons on watch thank you!

The repair for this problem may be quick and inexpensive--or somewhat more expensive. Either way, it's considered a minor repair.
The crown and stem assembly in held in a Rolex movement by a small pressure screw. When this screw is loosened, the stem can be cleanly pulled out of the movement without damaging any parts. The movement can then be removed from its case. If the screw is too loose, it is sometimes possible to pull the crown and stem out with ordinary effort. The simple fix for this would be to have a watchmaker take the back off your Rolex (requires a special wrench) and slide the stem back into the watch while loosening and re-tightening the screw. If that's it, the repair takes about 5 minutes, most of which is spent removing and replacing the watch back.
Things can get more complicated. The set stem interacts with a thin sheet metal spring / detent that helps the stem "snap" to its various set and wind positions. Sometimes, when a stem gets pulled out, the force of that can snap the delicate little finger in this watch part. Replacing this watch part will require that the movement be removed from the case and the hands and dial be removed for access to the part. Once you get to it, the part itself can easily be replaced--it's designed to be replaced without disassembling the whole watch movement--but there's considerably more effort involved than just sliding the stem back in and tightening down the screw.

1)Unscrew the crown until it pops out, the same way you would unscrew the crown to change the time on the watch.
2)Place the watch case opener in the notches around the outside of the back of the watch case. You have to use a watch case opener made for Rolex watches to open the watch. Once the case opener is in place, twist it and the back will pop open.
3)Use a mini screwdriver to loosen a tiny screw on the inside of the watch located near the stem. You do not need to unscrew fully--only loosen it.
4)Pull the crown straight out. The crown and stem should come out easily.
To open the back of the watch
1)Purchase a Rolex watch back opener set, if you do not already have one. This set is able to open and close any size of Rolex case.
2)Match the size of your Rolex case with the same size of grooved metal die from the tool set.
3)Put the metal die on the grooves on the back of the watch case.
4)Turn the die to remove the case.
5)Remove the rubber gasket.
This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

The stem has 2 settings...the first pull[click] will be for time only. then pul lit harder and it will come out a little farther and you set the day and date.. Christmas or B-Day ...Congratz..

Either the stem or latch needs to be replaced. It's a common problem for ALL manual wind watches.

RECOMENDATION:

Contact a local official Rolex dealer to address the problem.

GOTO:
http://www.rolex.com

To find a local dealer.

Hope this tip helps.

R/
David

try this: remove the stem (I assume you got the stem back on). borrow a strong shop vacuum and literally suck the moisture out the hole using your hand or duct tape tightly wrapped to funnel the vacuum from the tiny hole.