I think there is a power reserve problem with the jlc wristwatch I use.

[phillip99]

I think there is a power reserve problem with the jlc wristwatch I use. 

There is a picture of the product at the bottom.

 

The watch shown in the picture was purchased as a new product at the department store in May 2020 and worn every day for more than 6 months until December 2020. 

Since then, I haven't worn it, so I keep it in a place where there is no problem since I first purchased it. (Magnetism, shock, etc.). 

Last month, the error test for April 2021 and the Power Reserve were fine. It was +5 seconds. 

But when I tested the error in May 2021, the error was normal at +5 seconds, and the power reserve stopped at 37 hours.  

The original capacity of the product is 40 hours. Until last month, all 40 hours were up and running.

The power reserve indicator on the left didn't fall to the floor and didn't have a number written on it, but it stopped at a location with about three to four hours left. As a result, This means that exactly 37 hours of it fell to the bottom of the indicator.

Until now, when the clock stopped, the position of the power reserve indicator was also completely dropped to the floor.

So I'm wondering if this is a normal phenomenon as the overhaul cycle approaches. Or is there a problem with the main spring or something else?

That's my reasoning.

1) If it is due to magnetic properties, the error repeatedly double-checked 4 times cannot be the same for 5 seconds.

2) If the main spring is broken, it will not last 37 hours.

3) If foreign substances are involved in any section, it will be difficult to show an error of +5 seconds and 37 hours of continuous results.

4) I've never dropped or shocked... 

Now that I come to this conclusion, I can't imagine what the problem is at all. I would appreciate it if you could give me an answer.

If I go to an official store to repair the watch, I have to open the case on the back of the watch.

Because i don't like it

Incorporating the opinions of dear all of you

We will try to act after determining if it is normal or in need of repair at the store.

Thank you.

Edited May 25, 2021 by phillip99

[oldhippy]

Is it still under guarantee? If so take it back. No way should it need a service after this short time. Whatever you do don’t open the back yourself. That will make the guarantee none and void.   

[nickelsilver]

This is an issue with automatics and power reserves. Most watches have a margin of error on the "down" side, and they try not to be too specific with the actual hours of reserve on the indicator. In fact, if you look at the current offering from JLC they have made the display more vague, like a fuel level indicator. If the watch is running fine otherwise I would just wear it and enjoy it. It shouldn't need a service at 1 year old (though who know how long it was stocked before being sold...). If it really bothers you you can send it in under warranty as OH said.

 

[jdm]

3 hours ago, oldhippy said:

Is it still under guarantee? If so take it back. No way should it need a service after this short time. 

One can surely bring it back, and ask to be "fixed" under warranty. But the service center, or the manufacturer if there is sent, can also affirm that nothing was wrong, and charge for inspection and shipping. Not the outcome that would satisfy a demanding owner. 

[oldhippy]

If that is the case then the customer can demand a full refund. 

[jdm]

1 minute ago, oldhippy said:

If that is the case then the customer can demand a full refund. 

Which case? What i was trying to convey above is that the customer can demand, and the manufacturer can deny. Then how it ends? 

[oldhippy]

I think it's stupid to think they wouldn't put the thing right. Not a very good advert about there repair side and after sale service. 

In the past I use to take the you know what out of Timex, but they had a bloody good reputation for the after sale service and sure looked after their customers. 

[jdm]

23 minutes ago, oldhippy said:

I think it's stupid to think they wouldn't put the thing right. 

That if they were to agree that something is wrong with it. But from the description given by the OP I (like nickelsilver above) think that nothing is wrong with it.

Furthermore, I personally would not expect anything in terms of timekeeping or running duration from a watch that has only 8% left of the nominal power reserve. In my undersating, 40 hours power reserve means that one can at most skip one day in wearing it.

[Klassiker]

Clear case of a fault which has to be repaired under warranty. Below one year after sale, If the seller doesn't want to honour this, they have to prove the owner caused the fault. That's in the EU. You don't say where you are, but you should take it back immediately.