20 Most Recent Casio Sea-Pathfinder SPF40-1V Wrist Watch Questions & Answers

Yes Where the scew holes are for the back plate you will see two smaller holes located outside the seal groove. The spring goes in the left one.

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You can download it from Casio website i thinkOr contact the service center for helpelectronics wholesale

The manual for your watch can be found here: http://support.casio.com/en/manual/manualsearch.php?cid=009&MODULE=2273

This watch must be returned to Casio service center for servicing, pressure test and complete tune-up.

Around the outer edge of the watch there will be an indention. Pry open with a small screwdriver. Your internal compartment should be right there.

Harbor Freight sells a low cost watch wrench but in a Robinson Crusoe situation you can CAREFULLY use square nosed needle nose pliers(Lowes or The Home Depot won't object if you try out one of theirs); hold watch in wash cloth to protect your hand, put the square blades in the watch back indentations and slowly turn with maximum pressure, after it opens use a quality Japan Maxell SR621W silver oxide, do NOT use a China alkaline version as they leak and have less run time. Use a Q-Tip with light Vaseline around the sealing edges when reassembling. Sincerely batteryBob

Note how the buttons around the outside edge of the watch match up to the compass directions on the outer ring of the watch face. Use the butttons on the NW, NE, SE, and SW positions.

1. To enter time setting mode, press and hold NW until the Seconds start to flash. (You can exit time setting mode at any point by pressing NW twice)
2. Release NW and press SE to reset the Seconds to 00.
3. Press SW and the Hours will start to flash.
4. Set the hour by pressing NE (down) or SE (up) Press the lower button to move up and the upper button to move down.
5. When the hour is correct, press SW and the Minutes will flash.
6. Set the minutes by pressing NE (down) or SE (up)
7. When the minurtes are correct, press SW and the 12/24hr setting will flash.
8. Switch between 12hr mode and 24 hour mode by pressing SE.
9. Press SW and the Year will flash.
10. Set the year by pressing NE (down) or SE (up)
11. When the year is correct, press SW and the Month will flash.
12. Set the month by pressing NE (down) or SE (up)
13. When the month is correct, press SW and the Day will flash.
14. Set the day by pressing NE (down) or SE )
15. When the day is correct, press SW and the seconds will flash again.
16. Exit time setting mode by pressing NW twice.

This is a complex watch. You can download a manual here http://www.casio.com/products/archive/Watches/PRO_TREK/SPF40-1V/

Keep the Mode button pressed for 5 seconds, it will then revert to normal

here is a video that will show you enjoy

I have done the same , you are not alone and about to try to fix it.has your compass stopped working as with mine