Am unable to change day (Tues) to Mon - Casio DB36-1AV Wrist Watch

go here > http://www.armitron.com/watch_instructions.asp then scroll down to find your watch then download instructions

sleep more and skip a day

you cannot fix this. Unfortunately for movements to be that exact they cost a lot of money and the movement inside your subaqua is not that high tech and accurate. This is what makes watch really expensive the little things like this. Unless you are buying a 10k watch , they usually are not going to have the top of the line movement . The movement you have in your watch is an ISA 8173 and that is as accurate as the watch will get.

Simply keep changing the time till the day goes to tues..or whatever day it is.

mcdevito75 here, The month you mean the date (number of the day in the month) your Seiko should show the day / date Here"s how.--- To change the day (Monday, Tues. etc) simply pull out the stem and turn the hands around until you reach the day, now push the stem in all the way, and gently slip your fingernail under the stem and gently lift the stem to it"s first notch or position, Seiko watches have a 2 position stem to make changeing the date, (number) easy so you don"t have to keep turning the hands around and around, with the stem out to it"s first notch or position simply turn the stem either toward you or away to change the date, (number) when done push the stem back in and your done.

Some watches are designed to be international and thus have alternative names for the days of the week.

I think "mer, lun, dim" are Mon, Tues, Wed". It should be possible to re-set your watch to give the English version.

If you do not have a manual, you can get one from their web site "www.wengerna.com/mountaineer-titanium-72619" as a PDF file.

You have day ring in Dutch, not the English. Try to find out if there is English by slowly turning (changing) days.
Rate me, plz.

To sync the correct 12 hour with your day you need to set the date to the day before (if today is Wed 21, then make sure the day window reads Tues 20). Then spin the analog hands until the the date window turns to Wed 21. At this point your watch is reading 12 AM (midnight). Then keep turning to set the correct time. If it is 9 am then stop the hands the first time you hit the 9 marker. If it is 9pm, then keep turning until the SECOND TIME your hour hand meets the 9 marker. This is now set for 9 pm. The day (Mon thru Sun) sometimes needs to be set seperately from the day; it may take a couple of tries but use the directions above and patience and you will achieve your goal.
That's how you do it. If you need more clarification let me know.

change cmos battery with new one

hi
never change week or date when day is on "sun" or "mon" also never change date or week or day when time is between 9 pm and 5 am.
to change day, move time back and forth between 10 pm and 2 am.
moon will change only after 24 hr round (not during quick day change)
hope this helps
eli