Charging When do I know it's charged

There isn't one! The watch goes into a charging cradle and the charging cradle takes a USB Mini 'D' lead. It is shown in the images of the manual. you can see the 4 gold flashed contacts on the underside of the watch.

https://fccid.io/2AQMVITA34601/User-Manual/Users-Manual-3973896

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To charge your Apple Watch: Plug the Apple Magnetic Charging Cable, Apple Watch Magnetic Charging Case, or Apple Watch Magnetic Charging Dock into its USB power adapter. Plug the adapter into a power outlet. You can also plug the charging cable into a USB port.13 Sep 2016

Check your battery and charge your Apple Watch - Apple Support

https://support.apple.com/en-gb/HT204608

I couldn't find your model on thier web site but this range appears to have solar panels to charge the battery. Place your watch in bright sunlight or under a lamp (not a hot one) to charge the battery.

If this fails, consult your nearst dealer.

probably it had to be cleaned, there are some service center that didn't charged too much for repairs. i hope you can find one of them. i hope this will help you.

Wow, I haven't used my SPOT watch in years--but I found it!

The charging base for my Abacus AU4000 uses an adapter rated at 12 volts, .11 amps, center positive. I believe that all the charging cradles for the Abacus Wrist Net series watches were the same--the different model numbers referred to different case and band options.

Good luck, and don't hesitate to follow up if you have any additional questions.

The watch has a "battery" and claims that it does not need to be replaced but perhaps it needs re-charging. If you go to their web site (click on the link below), there is a full explanation of re-charging requirements :-
http://www.citizenwatch.com/COA/English/rechargeguide.asp

Ive never heard of anyone de-charging a battery! Sounds like those people didnt really know what they are talking about! Its very possible that its running without the hands moving! Its a very common issue in our shop. Watch has what we call a beat which comes from a magnetic rotor. We put some watch oil on the pivots where the wheels are and then place it on a machine that has a magnetic field and forces the hands to move and that can dislodge any old thickened watch oil or anything else that could build up...the watch may have even gotten wet at one point and could have rust or even corrosion inside the movement!

Find a good reputable watch repair shop and see if they can re-evaluate the watch and come up with a better reason that he is "de-charging" a battery! :-)

After charging the Skyhawk/Black Eagle watch, you need to reset it.

Here's how to do it:
Turn the crown (knob) until it's in chronograph mode (CHR), then pull it out to TWO clicks. Push both buttons at the same time and the display should turn on. The push the crown back in to complete the reset.

If that does not work and you are 100% positive it should've charged...take it in for service. It could be a bad battery (rare).

The Citizen Eco Drive watches use special recharchable batteries.
I started collecting a couple of watches and I noticed sometimes a jeweler replaces them with an ordinary battery. The watch will work and at the same time it will try to recharge this one until it explodes! In newer models they made it harder to use the non-rechargable ones by adding a special connector or clip to the rechargable battery types.
Okay, if you say your battery goes bad, or the watch does not run? It may have lost the charge over time. First thing to try is to leave it on the window sill so the dial is in the sun. It will start ticking, but please leave it out there for 3 days to a week. The seconds hand will tick irregularly in steps of one and two seconds, to show you it wants you to readjust the time, as it knows it has lost time. Adjust the time and it should run smoothly.
The seconds hand should run in single second steps, if it takes steps regularly, but every 3 seconds or so, it tries to tell you that its power level is going down. It will be able to continue for one or two days, but you should get it into the sun more often.
Charging the battery under a lamp is possible, however this heats up the watch and this may reduce battery life.
If you need to know more about the Eco Drive, look for detail tech manuals for all types here: http://www.citizenwatch.com/downloads/tech/tech.htm
Those are great watches as long as you remember it needs light to charge.