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  • many people

  • seem to struggle thing the new battery to Seiko perpetual calendar watches

  • and also resetting them. So today

  • I'm going to show you how to do that. A perpetual calendar watch

  • should remember that date even if there's only 28 days

  • or thirty days in a month and

  • it stores this in its internal memory.

  • This memory can sometimes get wiped out when the battery gets changed.

  • And so you will have to reset this manually.

  • The unfortunate thing about this watch is that it's very easy to break when

  • changing the battery

  • a) the battery is hard to remove if not done correctly.

  • b) there is a paper thin circuit board

  • and if you lever against this

  • you can actually puncture holes through it and damage the circuit board

  • unfortunately the circuit boards are extremely expensive because they're now

  • not being made anymore.

  • You'll see that there is

  • silver coloured

  • metal parts around the edge of the battery.

  • and this is where you want to lift the battery from...

  • not from the yellow parts. The yellow parts.

  • are actually part of the circuit board and

  • those will puncture if you try to lift against them.

  • Use a fairly wide flat screwdriver...

  • carefully put it underneath the battery

  • and twist.... don't push

  • just twist until the battery lifts up

  • if you push you could slip under the battery and damage the coil.

  • The coil is the orange part...

  • it's around 50 meters of copper wire...

  • it's very fine and will break...

  • very easily and so you have to be very careful

  • So we've removed the battery. Now the new battery

  • The reverse of removal..

  • Slide the battery under

  • the two little flaps on the right hand side...

  • if the winder is pointing towards you. You'll see this this little

  • retaining spring... just pull it out very carefully

  • and snap down the battery.

  • Now you can start resetting the calendar.

  • When you first fit the battery...

  • the watch will not actually be working. Don't be alarmed by this

  • the second hand will not start working until you've cleared the circuit board

  • and to clear the circuit board you have to short out the

  • AC contact which i'm pointing to here...

  • and the positive side

  • of the battery.

  • just like this. So just lightly touch them together

  • and hold for a few seconds. This will make the watch start working

  • It will be jumping one second at a time. Now you need to pull the winder fully out...

  • and push it back in. Now it's jumping four seconds at...

  • a time. This means that

  • the memory has been cleared and therefore we need to reset the perpetual

  • calendar

  • if it continues to jump one second at the time

  • that means it's remembered

  • the calendar information and you don't necessarily have to go through the process

  • of reseting the calendar memory

  • however I always do anyway

  • just be a hundred percent sure

  • to start with...

  • we need to zero the calendar ring. That is...

  • to move the calendar ring to

  • the first of the month or so that the calendar displays '1'

  • To do this, find the contact

  • with '0' printed

  • next to it...

  • it's to the right the winder if...

  • the winder is pointing towards you and you

  • short the yellow contact with the positive side of the battery

  • and you keep doing it each step

  • until the calendar ring moves around

  • to the figure '1'

  • So if we look now...

  • '1' is showing. Now we are ready to set the year.

  • To set the year look for the

  • 'Y' contact which is here so it's just a left of the winder

  • if the winder is pointing towards you.

  • You short it again

  • until you get to the correct year. If it is one year away from the leap

  • year

  • then you set it to '1' If you two years away set it to '2'

  • if you're three years away then set '3' if you are actually

  • on a leap year then set it to '4'. For example....

  • 2012 was

  • a leap year so that would have been '4'

  • this year it is 2013

  • and so we set it to '1' because this one year

  • after the leap year. Next is to month

  • and you press it once

  • to get it into month setting mode. Then you keep pressing

  • until you get it to the correct month

  • showing in the calendar

  • have a quick look

  • This month its

  • September so we need it on '9'

  • So finally we need to set the day

  • Find the 'D' contact

  • which is here

  • to the right of the winder if the winder is pointing towards you

  • and short once

  • to get into day changing mode and

  • if you listen carefully and you're in a quite room you can actually hear the

  • calendar turning over

  • and it will first go to '1'

  • and then you keep shorting until you get to the correct day...

  • today is the 18th so I am shorting 17 times

  • because it starts off a number one and hopefully if I

  • have done it correctly it will show '18' on the calendar

  • So now we've set

  • calendar and we've set the leap year

  • we've set the month... push to winder in

  • pull it out.... and push the winder in again

  • And we're done. When i say pull the winder out

  • I mean pull it all the way out... Don't pull it midway out

  • There are 3 positions... - All the way in

  • - Mid way out - And fully out

  • [Recap] We have fitted the battery...

  • And reset the calendar. All that's left now is to

  • reseal the watch and to perform a pressure test

  • it is an easy watch to break... so be very very careful when fitting the battery

  • remember that the circuit board is literally

  • paper thin

many people

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B1 US calendar battery circuit board leap year circuit perpetual

How to reset a Seiko perpetual calendar and fit a new battery. Watch repair tutorials. 8F32

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    Calvin Liu posted on 2015/01/06
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