Longines ETA 210.001 battery.

[rogart63]

Had a Longines in for a clean and new stem and crown. A very  ultra thin quartz  that  I only have heard bad things about this movement . The movement plate is so thin that is easily will bent if watchmaker press the battery in to hard. But nontheless i got it running. For 3 month . No it's dead again . Haven't got it back yet. But see that there is a few different options which battery it should have. I put in a 341 as the spec says. But see that it could have a lithium battery also.  Could it be that my movement needs a lithium to be able to last a year at least. 

http://www.startimesupply.com/product/ETA210001.html

 

Edited February 10, 2018 by rogart63

[Chopin]

That looks so fragile.

As far as I know quality of the battery matters as well. Was it a good one ?

[Ishima]

A silver oxide cell is what is needed for this movement. I don't know where you're seeing something about a lithium cell? I'm pretty sure there's none in the size of a 341 and the voltage would be too high besides. 

It might just be a dodgy cell, it happens sometimes even with the good brands, for no rhyme or reason. The second possibility is friction caused by over-oiling since I believe these are one of those temperamental ETAs that likely operate best on a very finite amount of oil on the gear-train/motion work. Maybe the hands are simply touching as they pass, or perhaps some other fault has occurred since you last worked on it. 

Edited February 11, 2018 by Ishima

[JohnR725]

According to ETA there's only two batteries for this 341 or the 346. Zero mention of lithium and their information is up-to-date as to 2016. Then I know I've seen one other small watche that did have an option either way of the batteries but I'm sure the circuit board is marked as the type of battery needs. Then the super tiny batteries they have a limited life unless it's fresh that's going to be a problem.

[clockboy]

I would first check the battery for voltage. I only use Renata or Seizaiken batteries because the cheapos tend to leak or just run out of power very quickly. 

[rogart63]

I have used a Renata battery. ETA says 43 month with the 341 battery. 

I looked at ranfft and they say a lithium battery? http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA-ESA_210_001

They are pretty easy to take apart . As almost all parts are on the inside the case. So will remove and see if i can get it running again. If it isn't the battery that is dead. 

It was very dirty when i got it. So maybe there could have come som small parts into the rotor.

 

[JohnR725]

There appear to be three different versions of the ETA 210 Interesting also the size differences three movements so the specifically listed as this    9´´´ ETA 210.001  & ,9´´´ ETA 210.011 Both of these require either the 341 or the 346 battery. A third version is 10 ½´´´ ETA 210.411 Different in size slightly bigger and the batteries the same 341 or 346 and Battery: "Lithium" type U = 2,1 V Ø 7.90 mm, height  1.05 mm. Capacity 8 mAh Renata 44. I suspect you're going to find that the number 44 battery doesn't exist anymore.

[Neileg]

I would first check the battery for voltage. I only use Renata or Seizaiken batteries because the cheapos tend to leak or just run out of power very quickly. 

Some of the Renata cells I’ve use drop off quickly after the expiry date. Not so the Seizaiken.
Maybe I’ve been unlucky.
Neil


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[Tiktok]

My 2 pence worth......

It could just be a faulty battery

You ideally need a consumption test doing on the movement, every watchmaker that does quartz watches will have a way of testing the consumption, I would suggest you take it to someone local and get it tested if you can't test it yourself. As you already say these movements are very flimsy and the plate can easily be bent, normally either someone putting the wrong thickness battery in or putting too much force on it whilst fitting it. There is a very good chance someone in the past has done this.

It may need a service, cleaned and a very fine oil like 9030 on the pivots, don't over oil it or the consumption will be high.

If after servicing it the consumption is still high and you are sure everything has been checked, scored pivots, bent wheels, end shakes, etc, I would guess the plate or bridge is bent, this is very common with this movement and would suggest a movement exchange or send it to swatch and they will movement exchange it as part of a service.

I wouldn't recommend buying a second hand movement off eBay as chances are you will have the same problem.

[MrRoundel]

That looks like a pricey movement. I can see why you want to save it.

On the subject of oil, I bit the bullet and ordered some Moebius Quartz Watch Oil. I think my Nye was OK, but I understand, as was mentioned, that it doesn't take a lot to stop a quartz movement. Plus it sounds like the quartz oil was formulated to be thin, but stay in place without migrating. Admittedly, I cleaned and oiled an ETA 955.114 last week and used the Nye watch oil that I have. The watch is now running well. It's my friend's watch so I'll hear about it if it gives him grief, burns out batteries quickly, etc. Good luck, rogart63. Cheers.

[rogart63]

Update a little. Not sure it will work forever . But it's working again. Had the rotor and wheels out. But there is some movement on the small wheels up and down so not sure it will last forever. maybe the plate is bent? But at least i got it running again .