Jump to content

Good Chronograph To Learn Overhaul?


Recommended Posts

I finally got a real ETA 7750.... Less than $230 including shipping--I could not have done better than that, believe me I tried.

It just arrived from..uh..Eastern Europe in working order. everything works fine and chrono hand resets perfect. The winding is a little stiff, and when I opened it up I can see the rotor spins  right along with the crown which is probably why its hard to manual wind. The watch keeps good time. I am going to wear it awhile before I dismantle. I am going to follow the super-illustrated and detailed walk through that @Lawson posted.

JC

 

DSCN0072.JPG

DSCN0073.JPG

Edited by noirrac1j
typo
Link to comment
Share on other sites

On 25 January 2016 at 4:05 PM, noirrac1j said:

I am anxious to attempt a chronograph overhaul and wanted to get input from you knowledgeable fellows before digging into my pockets. Any thoughts?

Do as much "YouTube" research and reading as you can regarding the particular calibre before you start.  You have a lot of experience on watches now Joe, so you should do just fine.  Remember, if in doubt ........... Stop and ask for help, 'cause that's what we're for. :)

Link to comment
Share on other sites

Hello @bobm12 and @Geo,

Thanks for the suggestions. Yes I am going to do a lot of reading and nothing will be done until I have all the proper materials and tools. I've ordered the specific oils such as Lubeta v105 and Molykote DX to add to the usual Moebius supply I currently have.

I have a bergeon 4040 ( a few actually) and I've ordered a special 7750 movement holder that allows testing the chrono function while nestled.  I am intimidated just looking at the procedures for disassembly because there are just so many thing going on mechanically! In any case, I'll have a special table where I can start and stop without anything being disturbed which allows for slow and steady work with no pressure. I'm wearing the watch right now--has a perfectly sized 40mm case and it's keeping good time. You guys will definitely hear from me as soon as the springs start a flyin'  

 

J

Edited by noirrac1j
weird typo came up
Link to comment
Share on other sites

43 minutes ago, Geo said:

Joe, remember to have this Lawson's definitive walkthrough by your side, they don't come any better!

Oh I have this bookmarked for sure. This is what I used to make the list of things I needed to add to what I have.

 

J

 

 

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Hi All, I'm Geoff and I've been working on/with watches and clocks since I was thirteen. My dad was a watchmaker and while he did not want me in the field as a profession, I've always maintained a pretty good working knowledge. In the '70's I kinda got pulled back into things because Quartz revolution began and he only had limited electronic knowledge. So we combined skills. He the watchmaker and me the electronics tech. Being here in NY helped because we got to know the folks from Bulova, Seiko, Citizen, and WOSIC. H.B. Freid was my Dad's teacher and I was fortunate enough to get to know him too. I still maintain a bench here at home and occasionally work on watches for friends although the hands aren't what they used to be. Not going to be working on any FHF59 or AS1012's any time soon. Oddly enough though my years working with the field taught me how to work on almost anything else mechanical and mostly electronic. Since I was the one in the family who maintained Dad's cleaning and timing machines. those experiences carried over quite nicely into the worlds of recording and audio as well as others. I look forward to the discussions and maybe still learning a trick or two. Cheers to all and nice to be here.  
    • The best and almost only way to achieve the magical £ 4.04 individual watch cost is via the loophole ploy of job lot buys Ross. Dividing down the outlay by the number of watches purchased. I've managed it many times in the past, this then gives you the extra edge of choosing any watch from that lot. Maybe we should have an all time winner, whos prepared to troll  through the last four years of posts and pick some worthy contenders. Unfortunately i have a poorly shoulder so i cant raise my right hand and my left shoulder is out in sympathy for my right shoulder. Put your right hand up if you think i talk a load of bull 💩     🖐 Tom's comment is purely restricted to  the Bergeon culture of " lets rip off everyone on the planet "
    • Ah but, will you count DIY versions.
    • £10.00 is not a huge amount for a watch these days with the increased asking prices. Let’s count ourselves lucky we don’t have this for tools, it would be £404.00 🤪   Tom
    • I have the perfect solution for this, i just dont invite anyone round.
×
×
  • Create New...