Question about Citizen Promaster Cyber Aqualand Nx Dive Computer Watch

1 Answer

After full battery drain, no function

My Citizen Cyber Aqualand NX battery was completely depleted, and the four penlites in the charger were dead to.

I replaced them with four re-chargable penlites, and let the watch charge for 8 hours.

After 8 hours, there was no way to get the watch running again. No display, nothing, even after trying a "hard reset" several times.

I replaced the 4 penlites in the charger with 4 alcaline batteries, inserted the watch, and within a second it came back to life, and showed, fully charged.

So keep in mind, do not use rechargables in the charger, the voltage is to low, and will not reset the watch in the correct mode.!!


Posted by on

  • Anonymous May 18, 2009

    tried changing the batteries in the charging unit with brand new ones still no luck the watch refuses to spring to life.

    the charger appears ok the blue light is strong.

    i'm at a loss.

    any suggestions

  • Anonymous Mar 17, 2014

    Watch worked fine,charged it after playing golf,turned it off,it was dead the next time I tried to use it. I plugged in the charger but sceen is blank



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Hello FixYa,

How I solved the problem ???

Read my former post again.

I thought this could help you with your troubleshoot database.

Ragards, Marc

Posted on Dec 02, 2008


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Hi there,
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Posted on Jan 02, 2017


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What type of battery is used for replacement.

type would be a disk or button. size required is not stated .

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Battery replace for Citizen Cyber Aqualand NX

My Cyber was working fine and reporting a full charge, but when diving, it would stop working and go into safe mode. I sent it in to Citizen and they replaced the cell, now all is good again.

Mar 06, 2013 | Citizen Promaster Cyber Aqualand Nx Dive...

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After having charged the battery to full and setting the time etc. all works well until i press the light button and then all fails. It would seem that the battery will no longer charge, is this normal...

Hi, As far as the info you quoted ,I am afraid that your battery does not hold charge anymore or charging circuit has a problem and ,it does not charge.
If I were you I will replace the battery first to see if it will work..
If problem continues ,then it will be an expensive repair action as next step..
It is up to you to make it repaired or to buy a new one since repair sometimes costs almost the same price.

Hope this helps! Take care and please Remember to rate/vote for us to continue
for Helping out the Community :)

Jul 03, 2011 | Citizen Promaster Cyber Aqualand Nx Dive...

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Hello i have a problem with my Citizen Cyber Aqualand NX. He is flashing FILE. I have tried to do the garbage collection, but he said Fail. Also the Formatting of the Flash memory dos not work, and said...

I got last year same problem, easy to resolve :) I was doigng GC and i got my watch in failur exactly like yours. Solution? Buy 4 fresh, alkaline, good brand batteries. Put it in charger unit. Let the watch to charge for 12hours. After do garbage collection again or formatting if you cant do GC. If you got again fail, charge again it for 12 hours. I did it for 3 times and...the third days, I got "Done!" and solved :) It happens when battery is not full charged, so do GC just when is very charged. I love my Cyber, but sicne seems that GC collecting drink a lot of energy seems that low level battery doesnt let the inside flash memory to work well when try to format/GC datas.

Jun 01, 2011 | Citizen Promaster Cyber Aqualand Nx Dive...

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Hi there i have a occanic atom its about 2 years old, ive just replaced the battery and can seem to get it to work there are loads of numbers flashing up on the screen can i reset it ?

I assume that you no longer have the manual.

You can get one by going to "" and downloading the one for your model.

If you have a manual or the manual doesn't cover the problem that you are having, I suggest that you use the "locate a dealer " tab on the site and discuss your problem with them.

Mar 21, 2010 | Citizen Promaster Cyber Aqualand Nx Dive...

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How do you change the date or time on the cyber aqualand jv0020 040e

You can get instructions from the Citizen web site.

Go to "" and on the upper right there is a menu. Click on "technical support" and then on "setting instructions"

Fill in the information required from the back of your watch and then click on "get setting instructions"

Feb 07, 2010 | Citizen Promaster Cyber Aqualand Nx Dive...

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I have a Citizen Aqualand Promaster 200M circa 1991 and the analog has stopped working. It was sent back to Citizen repair facility in CA last year and they said it cannot be repaired because movement is...

First of all they should be giving you explanation why the watch needs whole movement replacement and what is the cause.
As the watch movements are upgraded and made more sophisticated every year, some of them are discontinued and the next generation movements are replacing them. Watch manufacturing companies usually try to produce interchangeable movements, so, the newer one can replace the older.
In your case (if there is no newer version replacement) you have no option, but to shop around for exact new movement for replacement.
All you have to do is to find out your watch's movement number (that Citizen facility in CA should give that) and then shop for it. Plenty of movemevts on ebay, not to mention specialized watch part supplier companies. All available over the internet - just takes some time and nerve.

Rate, please.

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