Christopher sent me this Longines for a service. The watch randomly stops, and doesn’t wind properly.
As you can see from the photos, there is a bit of varnish missing from the dial at 6 o’clock, but there isn’t much I can do about that.
The very nice looking L847.4 movement.
A very thin and elegant movement.
Having taken the movement apart and having cleaned it, I start off with a new mainspring.
The balance jewels are put into place and oiled.
The movement is beating again.
With a healthy amplitude and very stable beat rate.
Now I can put the bottom plate back together.
The movement is cased and put on the timegrapher for the final adjustment.
A very classy, understated manual wind Longines.
I’m servicing a Longines with this movement. Do you have a suggestion for the proper mainspring replacement for the L847? Do you recall what you used when you serviced the watch?
Regards,
Michel
Hi Michael,
I’m afraid I don’t remember – just measure the old mainspring and buy something that is as close as you can get?
Regards,
Christian
Hello,
This is a silly question but will I be able to use a L847.4 mainspring and unit in a L847.3 movement?
I was thinking as they are both L847 I could swap the parts around but I am still a beginner.
Sincerely,
Jake West
Only one way to find out. Measure the two springs.
Hello: I have almost the same watch, but with roman numerals.
Any idea of the fabrication year? Thanks very much
No 😉
9 months on and you can’t believe how well this little watch keeps time – I literally never have to adjust it unless I’ve forgotten to wind it and it stops. It doesn’t have a second hand, of course, but it’s certainly never far off. Fascinating. Thanks again Christian.
Hi, Christian
I am pretty sure that the dial was restored in the past.
Best regards,
Vlad
Lovely to see my humble ebay watch get a post on the blog. I wanted something classic, simple and elegant for wearing to work and, in my opinion, this fitted the bill. I love it. Glad to hear others think it’s nice too. Thanks very much Christian.
Cheers,
Chris.
That movement seems quite a performer given its thinness – 2.5mm!
Apparently there us a sub-second version… which is about the only thing that could make that watch nicer in my opinion 🙂
It was just dirt and missing lubrication.
Was anything wrong with the movement to make it keep stopping and be a problem to wind?
Ok. Thanks.