Second hand moves erratically in 3 to 5 second jumps

If your Dango watch's second hand stops intermittently, there are a few things that could be causing the issue. Here are some possible reasons and solutions:

1. Low Battery: If the battery in your watch is running low, it could cause the second hand to stop. You may need to replace the battery in your watch. Check your watch's manual or take it to a watch repair shop to have the battery replaced.
2. Dirt or Debris: Dirt or debris can get inside your watch and cause the gears to stop moving properly. If this is the case, you may need to have your watch cleaned and serviced by a professional watch repair person.
3. Loose Second Hand: If the second hand on your watch is loose, it could cause it to stop intermittently. A loose second hand can be caused by a damaged pinion or cannon pinion. You may need to take your watch to a professional watch repair person to have it fixed.
4. Magnetic Interference: Magnetic fields can interfere with the movement of the gears inside a watch, causing it to stop or run erratically. If you have been around strong magnets or electronic devices, it could be causing the issue. Try moving your watch away from these devices to see if that helps.
5. Mechanical Issue: There may be a mechanical issue with your watch's movement that is causing the second hand to stop. This can be caused by a worn out gear or other component. You may need to take your watch to a professional watch repair person to have it fixed.

If your watch is solar powered the second hand performs this characteristic when it's in need of a charge. Try placing your time piece under a bright light for short time or in direct sunlight and see if this helps you with your problem.

You are witnessing what is called the EOL or end of life indicator. Relax, it's your battery not you! Better watches have this feature. You will notice the time remains correct even if the seconds hand jumps 4 seconds. Some watches it is 2, some 3 seconds.

Many high end quartz watches have a feature called the EOL or end of life indicator. This causes the seconds hand to jump 2, 3 or 5 seconds depending on the make of watch when the battery life is low. The watch will continue to keep accurate time until the battery dies completely. So, when you see your seconds hand jumping multiple seconds it is time to get a battery.

The second hand jumping three or four seconds .I have had this same problem and found out that its i sign of wanting a new battery.Mine is now perfect

Your watch is fitted with EOL feature and let you know about insufficient battery power by moving seconds hand by 2-5-second increments. You have about two weeks time to change the battery from the EOL engagement or your watch will start to malfunction or even stop. In this case you will have to reset your watch after battery replacement. EOL = End Of Life (relates to battery only). Jumping seconds hand means it's time to change battery.
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When the second hand moves in short jumps rather than a smooth sweep or a second-by-second hop, it means that the battery is about to run out. Usually, with a week or two the watch will stop working altogether. You should go and have it changed as soon as possible.

Your TAG is fitted with EOL (end of life) feature. This is the cause of that 4 seconds interval movement of seconds hand and thus indicating the time for battery replacement. The timekeeping is not affected by this- it is just warning to replace battery a.s.a.p.
Find your nearest watchmaker and ask for battery replacement.

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I had the same problem with my Tag. Same 4 second jump. It's definitely the battery. I'm surprised at only 3 months, but maybe it sat a while in the display case. Mine was over a year and a half.

You have tiny dirt particles in gear train or one of the gear wheel teeth is damaged. As a result of this the seconds hand is behaving erraticly when the damaged point on wheel reach the junction point with another gear wheel.
There is nothing you can do yourself. Find the nearest watchmsker and ask to overhaul your watch.