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JLC Reverso


IFELL

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Hello

my friend wants me to look at his Jeager LeCoultre Reverso, mid-size ref. 252.8.86

Does anyone here know what movements did JLC put into these simple hand wound Reversos?
And is there a way to shop for parts if something needs replacing?
Are there any service sheets available?

I won't be able to get my hands on it for some time so that is why I'm asking...
Thanks for any help.

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I think that has a 846 movement. Very small, but very straightforward, don't expect ETA timing, be very clean and peg your jewels. The barrel is tiny and you should definitely use a winder. If the spring looks good reuse it, unless you can get a genuine replacement. I may be mixing up with the 845 but one of them has a bushing in the bridge for the center wheel and that's a problem area.

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8 hours ago, nickelsilver said:

I think that has a 846 movement.
 

Thanks for the insight. Are there any usual problems which cause the movement to stop?

At this point I am not sure what is the problem with my friend's watch, maybe it doesn't wind or it does wind but doesn't run...I will probably have a chance to take a look at it next week...

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2 hours ago, IFELL said:

Thanks for the insight. Are there any usual problems which cause the movement to stop?

At this point I am not sure what is the problem with my friend's watch, maybe it doesn't wind or it does wind but doesn't run...I will probably have a chance to take a look at it next week...

No it's really a pretty standard movement. Looking at pics I see that some are jeweled at the center wheel and some not, the ones I've worked on have been older and non jeweled there, and in a couple of cases the center wheel upper pivot was quite worn and the bushing trashed. But otherwise it's just a very small movement. There's a good chance you might need to do a little escapement adjusting, they tend to come from the factory with fairly heavy locks and you might not get a full healthy amplitude without a little tweaking. You can't put a stronger spring in, the barrel is very small and is already struggling to give the 38 hours of power reserve. Any thicker/longer/shorter spring quickly eats up almost a full turn of wind.

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    • in general this shouldn't be any change. but in general questions like this it be nice to know the specifics of the watch in other words how was it performing before it was cased up and what is it doing now.
    • just as a reminder this watch is a Swatch group product. This will bring up a problem like spare parts and technical information. that I found some links to some information on when I talk about your watch and some of the technical and basically your watch is equivalent to 2834-2 for which I'm attaching the technical sheets. But equivalent does not mean exactly the same you want to do a search on the group for C07 as we discussed this watch before including the technical differences how it's supposed to be regulated and basically because it's watch group there is no parts availability. https://calibercorner.com/eta-caliber-c07-xxx/   https://www.chrono24.com/magazine/eta-movements-from-the-2824-2-to-the-powermatic-80-p_80840/ https://www.watchuseek.com/threads/h-10-movement-details.4636991/ eta CT_2834-2_FDE_481857_15.pdf
    • people be honest.... Swatch is evil for the watchmakers and repairers, BUT not everything in watches from Switzerland is from the Swatch-Group. As far as i know, Selitta got sacked by Swatch as a Movement-Assembler for them and they started to produce Movements in their own Name with slight Modifications. As far as i know, they sell Parts to the Market for their Movements. In most cases, if a ETA-Movement fails, it is a valid Option to replace it with a Selitta Movement, which i consider the Solution for this Mess with the Swatch-Group...... I have no Connection to anybody at Selitta, but being a Swiss-Guy, i still like to have Swiss-Made Watches, but not from the Swatch-Group.   ok ? regards, Ernst
    • Just one more greedy act by Swatch. They started a number of years ago here in the US..cutting off supplies to watchmakers that could build complications that many Swatch houses couldn't even touch. Old school masters who had gone through some of the most prestigious houses in the world. Otto Frei has some statements on their page about it. I tell all my customers to avoid new Swiss watches like the plague,..unless they just want an older one in their collection that still has some parts out on the market, or they have really deep pockets and don't mind waiting months and paying through the nose to get it back. Plenty of others to choose from..IE Seiko,..or other non-swiss brands Even a number of Chinese brands are catching up with the Swiss,..and I think that in time, their actions will be their downfall
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