Swiss ETA-2836/2671 25j Automatic

[rozel]

Hi all

I bought a Ladies Rolex DateJust watch a few months ago and only after modding it did I realise that the movement is faulty. It loses 8 minutes a day and when it's taken off the wrist it stops after a couple of hours.

The movement is described in the subject.

What is a ETA-2836/2671 ? I thought it had to be one or the other ?

A pic of the movement: -



Anyhow what I want to achieve is to replace the movement. I believe it does not need lubrication/servicing and just maybe the mainspring is broken ? That is the view of 2 local repairers, both of whom cannot fix it.

My questions are: -

1. What is the movement exactly - I believe it to be Swiss, that was what I ordered, but which one?
2. If I get a replacement movement, will it be easy to install. I have read the guides but I have a really noob question here - I presume the dial and hands are afixed to the movement. Could someone explain the proceedure of removing the dial and hands and replacing them on the replacement movement please?
3. Any other observations would be appreciated

Finally a pic of the modded watch: -



As you can see I have fitted a solid gold 18K channel set (custom) diamond bezel and 18K solid gold-linked Jubilee bracelet. The price of the mods make it that I really do not want to send the watch through the post anymore! I should of course checked the watch before making the mods - but you live and learn!

Appreciate anyone's views and help

roz

 

[rozel]

I really would like some comment on my questions ....... Anyone please?

roz

 

[jdavis]

The movement has got to be either a 2671 or 2676. The 2836 is too large for a lady's case. The procedure for replacing the movement isn't that complicated provided you have the proper tools and on a small movement you certainly will need good light and magnification. Once you have opened the case you should be able to see the winding stem release button or slot just to the side of the stem. With the crown pulled to the hand setting position, set the time to 12:00 (this is important), then press the release button in with the blade of a screwdriver until the crown and stem can be removed. Next, locate the two case clamps holding the movement to the case with screws. Remove the screws and clamps carefully lifting them from the case with your tweezers. Now the movement can be gently lifted from the case or rotate the case face up and let the movement drop into your hand. Place the movement into a movement holder or place on a movement pad. Removal of the hands will require a hand lifting tool. Cover your dial with a piece of paper with a narrow slot that you can slide under the hands and around the cannon pinion. After you dial is protected you may remove each hand with the hand removal tool. The dial is removed by locating the dial foot clamps located on the sides of the movement. Most ETA feet are found between the 2:00 and 3:00 position and between the 8:00 and 9:00 position. Using a small screwdriver push in the opposite (flat) end of the clamp. The clamp will rotate forward (out from the movement) and release the dial foot. Gently lift the dial free from the movement. Install the dial on your new movement and reverse the procedure above to clamp the dial in place. Installing the hands requires a hand puting tool which is used to gently seat the hands back into the 12:00 position of their respective posts. Installing a second can be a frustrating experience without good magnification. I like to hold the hands with Scotch tape to get into position before gently pressing them down with the puting tool. Place the finished movement back into the case, carefully insert the winding stem, fasten the case clamps to the movement , and replace the case back.

I do not pretend to be a watchmaker and offer this information to briefly explain the procedure to you. If it seems unclear or complicated, don't get in over your head. Any competent watchmaker should be able to change the movement for you. I hope this is helpful.

 

[rozel]

The movement has got to be either a 2671 or 2676

Thank you for replying - I had begun to give up hope that anyone would respond to my questions.

You certainly have given me great encouragement about changing the movements - my replacement will be with me very shortly. I am truly grateful, thank you.

However from your opening sentence above, I wonder if you recognise the movement? - I suspect not. What I want to know for sure is whether this movement is a Swiss ETA or a "copy" of some sort.

Anyone please?

roz

 

[jdavis]

Roz, it is impossible to be 100% certain because the clones are so good. However, I have never heard of a clone of this movement and it does appear to me to be an ETA movement. Look for the ETA logo and model number which will be stamped beneath the balance wheel.

 

[trs80]

I know this thread is crazy old ...but did you swap out the movement?

I am in this boat now ...try to find someone to service a movement ...buy a new clone ...buy an ETA. My wife's clone datejust just stopped. Any additional commentary to your journey would be helpful.