Sector 450 date set - Sector 450 2653450035 Wrist Watch

Unscrew crown. Some models of Sector Sport watches may have a screw down crown. Watches meant to be used in water will often have this feature. To test this try spinning the crown freely in both directions. If it does not spin freely it has a screw down crown. If your Sector has a screw-down crown, turn it in a counter clockwise motion to unscrew it until it pops free.

Pull crown out one click and set date. If the watch has a date perform this step, if not move on to the next step. Pull the crown out one click. Twist crown clockwise and counter clockwise to set the day and date to the previous days day and date. The purpose of this is to set the date by setting the time and insuring the watch is in the correct a.m. and p.m. mode.

Pull crown out to the next click and set time. Pull the crown out the to next click. This is the time setting mode. Set the time by turning the crown clockwise until the day or date changes to the current date. This is the a.m. mode. Continue to the correct time. If it is a p.m. time this will require moving one full circuit of the dial past the twelve again and then to the correct time. If you fail to do this, the date will change at noon. If there is no date, simply set it to the correct time.

Push in and screw down crown to retain water resistance. Push crown down into its furthest setting. If it is a screw-down crown, press the crown in with a finger and twist it clockwise. Be careful here not to cross thread the crown in the crown tube or it will need to be replaced. It should be smooth and easy to turn. If any pressure or resistance is felt stop and start over. If you fail to screw in a screw down crown your Sector Sport watch will not be water resistant.

Could not find a download for instructions on this watch, but I did manage to find some basic instructions for the Sector brand. I hope this helps as this is the best I can come up with.
Good luck.
Sector Chronograph Watch Instructions

Most chronograph watches have screw-down crowns for water resistance. You must unscrew the watch crown before you can make any changes to the watch time. After time is set screw the crown back in. To utilize the chronograph dials, use the buttons on the side of the watch. One button will be for the second timer. Press once for the second hand to start timing. Press again to stop it. Another button will be to reset the second hand timer back to zero. Sector Chronograph watches may have different dial functions (see link in References).

Sector Dual-Time Watch Instructions

Because Sector watches are known for their sports capabilities, the Dual-Time watches have screw-down crowns. For Dual-Time timepieces, unscrew the crown counterclockwise. Pull the crown to middle position to set the date. Pull the crown out to its fully extended position and rotate it to set the day of the week, hour and time. Press and hold in the crown and turn clockwise to seal the crown back in to the watch.

Sector Ana-Digi Watch Instructions

Sector Ana-Digi timepieces have analog hands plus digital timekeeping functionality. To set the time, unscrew the crown counterclockwise and then clockwise to the appropriate time. The digital functionalities are programmed by the buttons on the side of the case. Depending on the style of the Sector watch, you can set the digital time with one button, set the date display, 1/100 seconds chronograph timer, altimeter, thermometer and alarm functions.

Some watches will change the day/date starting at 1130pm and not be done changing both until 230am. So yours may be normal for that particular watch. BTW, that is when the date does change to the next day, at 1201am. Hope this helps.

I can't find the instructions for this watch but Casio instructions may be similar, so you could try this:-

Press the "mode" button until you get an abbreviated message for hand setting mode (HS?)

When in this mode, I expect that two of the other buttons make the hands go forward or backward.

Some experimenting will be required. When you have finished, press the mode button until normal operation has been achieved.

Good luck!

i doubt u will, just take it to any respectable jewelry store with a in house shop and they should be able to fix it or sent it to someone who can

Ask http://manualfox.com to find it for you. They are great.

when looking at the face of the watch, the "dial" to the bottom-right is actually a screw-in, screw-out dial, it is not a push dial. Unscrew it until it is freed from the screw AND THEN pull it out two clicks, adjust time as needed...