Removing the crown/stem of CASIO EF-321

First of all avoid setting the day and day of the week between 9.00 pm and 6.00 am. The day and day of the week may not change in the following day if you do.
Try this,
1) Pull the crown to the first click.
2) Set the day by rotating the crown counterclockwise.
3) Set the day of the week by rotating the crown clockwise.
4) Push the crown back to its normal position.

Hope this will help.
Cheers

pull the crown out to second position then press start button till it gets to 12 then push crown back in......

Unscrew the crown by turning it counter clockwise until the crown is free from the stem. Then turn it clockwise six times. After this step push the crown in and continue turning it clockwise until it is once again screwed back on to them stem. DO NOT SKIP THE LAST STEP because although the watch will operate in the winding position it no longer water proof. A simple drop of water in the stem would mean death for your watch. If you wear the watch everyday I suggest you wind it once or twice a month.

There is a small screw (or maybe push-stud) almost in line with the stem entry point and slightly in from the edge of the movement, half unscrewing (or pushing) will release the stem.

The knob that adjusts the time is called the crown, and it will have a stem attached to it. You will need to remove crown and stem together.
If it's a screw-down crown, unscrew it.
Examine the watch mechanism very carefully while pulling out the crown (as if you were adjusting the time) and pushing it back, What you are looking for is basically anything that moves. If you do see parts of the mechanism move, look very carefully around that area for an arrow mark impressed in the metal pointing to a small dip in one of the metal parts.Often, this is on a tiny lever but not all manufacturers bother with the arrow.
Ensure that the crown is pushed back to it's normal position. Put a tiny amount of pressure on the dip (a needle is ideal for this), and carefully attempt to pull out crown and stem.You may need to apply slightly more pressure to get a result, but please take care not to press too hard or you may damage the mechanism.
Hopefully, that should sort it out. To refix the numeral bar, I'd recommend super glue - but you only need a tiny, tiny amount. Apply it with the tip of a needle and you shouldn't go far wrong.
Once you're looking at reassembly, you should be able to reinsert the crown and stem without depressing the dip but do it gently and don't force it - it may need a slight turn to relocate properly before it slides back in.

I hope this was easy to follow - get back in touch if you get stuck.

on most movements the is a little arrow pointing to a hole. use a pin and push down and the stem should just pull out. please rate my solution

The winding crown is loose on the stem. Get the stem completely out of watch and while holding in vice or pair of pliers screw the crown back on tight. Do not overscrew it, as the stem may brake. Even better would be to unscrew the crown first, dip the threaded stem end in to the Superglue and then screw the crown back. It will prevent from the same problem in future.

Rate, please.

On some watches - scuba usually - the crown has a rubber seal and that seal is engaged when the crown is screwed to the case. If your watch is like this, you need to unscrew the crown before you can pull out the stem. Twist the crown in a counterclockwise direction several turns. You will be able to tell when it is completely unscrewed because youwill feel spring tension. Pull out the stem to set the watch. When you finish, push the stem back in. Push against the spring tension and carefully thread the crown back onto the case. That should do it.

There is a tiny point (end of small metal piece called setting lever) on the left side of the stem (on watch movement, very close where the stem is entering the movement).
You have to push that point down with a metal pin or tweezers. Crown (winder) must be pushed in to normal position otherwise you will not be able to put the stem back properly.
So, do as follows:
1) Push the crown in,
2) Lay the watch down on flat surface and push on setting lever point,
3) While holding setting lever pushed in- extract the setting lever by gently pulling crown out of watch.

Do not forget to rate, please.

The crown is probably a screw down style. The screw down stem is designed to keep the water out and should be screwed shut when not adjusting the watch. Look at the watch stem from the side, look from the 3 oclock to the 9 oclock, you should see the end of the stem. Now turn the stem counterclockwise. After a number of turns, the stem should pop out a bit, it is now ready to set. Most waterproof automatic day/date watches have 4 positions for the stem:

1: screwed down (locked)
2: unscrewed position A
3: unscrewed position B (stem pulled out to first "click")
4: unscrewed position C (stem pulled out all the way.)

Position A:
This is usually used to wind the watch, although some automatic watches cannot be wound by the stem.

Position B:
Used to set day/date. Turning the stem one direction will advance the day and turning it the other direction will advance the date.

Position C:
Used to set the time. Some watches will "hack," a term used to describe the ability to stop the second hand for accuracy purposes.

Be sure the watch is at least a little bit wound before starting theis procedure or it will not run when you get it set!


Unscrew the stem and pull it all the way out to position C. Now turn the stem to advance the time clockwise. Continue turning until the day/date advances, now you know you are in the AM 12 hrs of the day. It is important not to advance the day/date with the stem during the 3 hours before and the 3 hours after midnight, so go ahead and move the time to 8 am.

Now push the stem in sligthly until you are in position B. Sometimes it is easier to go to position A, the out to position B. Once in position B, advance the day/date until it is set for the current day/date.

Pull the stem out to position C. Adjust the time to one minute past the current time. Watch your reference timepiece until it matches your watch and push the stem in when they match.

Your watch is now set! Screw the crown down and wear it in good health.


Hacking. If you stop the second hand at 0 seconds, and wait for your reference timepiece to reach 0 seconds also, you can set the watch to within a second accuracy.

Movement slop. If you advance the time past the time you wish to set your watch and then "backup" to your chosen time, you will remove the slop from the geartrain and make your watch set more accuretly