redwatch Posted April 29, 2011 Report Share Posted April 29, 2011 Hello fellow RWG'ers!!! Well it is a momentous day as I am doing my very first 7750 keyless works repair. I thought I would take some pics along the way to show you my progress and see if anyone has any tips or pointers First of all, thank you txcollector for the fantastic link to the ETA SwissLAB with a full tear down procedure. Granted, this is an A7750 and there are some subtle differences, but I think it is working out just fine. For those of you who didn't see that post you can find a link to the SwissLAB here Now I will be doing this teardown on a PAM 024D. The keyless works was messed up and to help out a good friend, I offered to give it a go. Obviously the first procedure is to de-case the movement (a procedure that I will not cover here). So, once removed, I mounted the movement and dial into my bergeon movement holder to begin the process of removing the hands: And now the hand removal: Next I removed the dial. This particular PAM has a GEN dial on it which was mounted with dial dots, so extra care is needed to remove it. Once removed, i cleaned off the old sticky residue from the dial dots: Isn't that a lovely looking Lello date wheel? Anyways, now to remove the date wheel. There are several parts that need to be removed here, but I will caution you to be very, VERY, careful when you go to remove the Jumper Spring. It will fly out before you even know what has happened and then you will be quite screwed! So, after some very careful work, the date wheel is now removed: Next we remove the date platform. Three little screws and a little effort to pull it up and you are good to go: Now we remove the hour and minute hand gears as they are just sitting in place. If you flip the movement over at this point, there is a very good chance these parts will just fall out so you need to be very careful: And now the close up of the keyless works: To be continued........ Link to comment Share on other sites More sharing options...
asf Posted April 29, 2011 Report Share Posted April 29, 2011 Freaking amazing work S! you have the hands of skilled artisan Link to comment Share on other sites More sharing options...
mrboombasteke Posted April 29, 2011 Report Share Posted April 29, 2011 This makes me want to try this out. Maybe I can service my own A7750 watch. Link to comment Share on other sites More sharing options...
krpster Posted April 29, 2011 Report Share Posted April 29, 2011 So far so good. Very nice detail. Thanks. Link to comment Share on other sites More sharing options...
Orion1632 Posted April 29, 2011 Report Share Posted April 29, 2011 Good stuff, thanks. Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 Thanks folks! More to come tomorrow!!! Link to comment Share on other sites More sharing options...
Bike Mike Posted April 29, 2011 Report Share Posted April 29, 2011 Nice job! Pssst...You did not have to remove the DW and all the mechanics to get to the keyless works. That is the issue with using the SwissLab site...it shows you full breakdown of the movement for a full service. You could have just removed the 3 screws for the Date Bridge and removed the entire assembly putting you right at the keyless works. Also, notice your Date Jump wheel...ETA really needs to use this style. It allows you to quick change the date at anytime you wish! Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 Nice job! Pssst...You did not have to remove the DW and all the mechanics to get to the keyless works. That is the issue with using the SwissLab site...it shows you full breakdown of the movement for a full service. You could have just removed the 3 screws for the Date Bridge and removed the entire assembly putting you right at the keyless works. Also, notice your Date Jump wheel...ETA really needs to use this style. It allows you to quick change the date at anytime you wish! Great tip Mike! Thanks for that. Now I know for the next one! Link to comment Share on other sites More sharing options...
Rolexman Posted April 29, 2011 Report Share Posted April 29, 2011 Keyless works looks fine by the way Nice tut. Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 Ok....on with the show So now I have the keyless works completely disassembled: All parts check out and everything looks good so I began the reassembly process. I have made a little video of the procedure as well which I will be posting in a little while. Here is a pic of part of the re-assembly: Link to comment Share on other sites More sharing options...
Orion1632 Posted April 29, 2011 Report Share Posted April 29, 2011 So when you service the watch, what are you looking for? Where and when do you apply oil? Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 So when you service the watch, what are you looking for? Where and when do you apply oil? In this case, I am not really "servicing" the movement. The keyless works was knocked out of position preventing the stem from going all the way back in to the winding setting. (I had already pushed it back into position before the disassembly but I thought it would be good to show the tear down and re-assembly of the movement in this tutorial so I kept going. Servicing and oiling the movement is not something I am prepared to do quite yet, but soon Link to comment Share on other sites More sharing options...
Rolexman Posted April 29, 2011 Report Share Posted April 29, 2011 Nice pics but there was no reason to disassemble the keyless works other than a educational purpose for this forum. All components were positioned just fine. Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 Nice pics but there was no reason to disassemble the keyless works other than a educational purpose for this forum. All components were positioned just fine. Correct... as stated earlier, I reset the keyless works before hand. I wish I had taken pics of it before I started the complete tear down But, the tutorial has been fun to make so I figured I should keep going. Plus, for my own knowledge, it was fun to see how it all went together and to see how it operates. The video will show this a little more clearly and is uploading now Link to comment Share on other sites More sharing options...
Rolexman Posted April 29, 2011 Report Share Posted April 29, 2011 Correct... as stated earlier, I reset the keyless works before hand. I wish I had taken pics of it before I started the complete tear down But, the tutorial has been fun to make so I figured I should keep going. Plus, for my own knowledge, it was fun to see how it all went together and to see how it operates. The video will show this a little more clearly and is uploading now Ah ok. A worthy contribution Red Link to comment Share on other sites More sharing options...
dbutlerman Posted April 29, 2011 Report Share Posted April 29, 2011 Sweet! Nice work Red! I've had the 7750 down to this point, but, I never put it back together...I lost a couple of crucial parts... Link to comment Share on other sites More sharing options...
redwatch Posted April 29, 2011 Author Report Share Posted April 29, 2011 And now for my very first ever Tutorial Video!!!! Link to comment Share on other sites More sharing options...
Orion1632 Posted April 30, 2011 Report Share Posted April 30, 2011 Great stuff thanks! Link to comment Share on other sites More sharing options...
asf Posted April 30, 2011 Report Share Posted April 30, 2011 Fantastic video! Should be stickied Link to comment Share on other sites More sharing options...
Bike Mike Posted April 30, 2011 Report Share Posted April 30, 2011 Nice job S. Now go Rodico the hell of of the movements shiney parts to get all the finger prints off. Link to comment Share on other sites More sharing options...
Lobster Posted April 30, 2011 Report Share Posted April 30, 2011 Awesome video bro!! well done Link to comment Share on other sites More sharing options...
Rolexman Posted April 30, 2011 Report Share Posted April 30, 2011 Great job filming it. Nice and sharp film. What camera did you use? PS: Don't forget to oil and grease the different parts as the keyless works is under a lot of stress. Otherwise wear and tear will set in pretty fast as all the metal grinds against eachother. It's easy if you have some different oilers, the right oil and grease (D5 and PML) and follow the SwissL@b instructions. Link to comment Share on other sites More sharing options...
Jkay Posted April 30, 2011 Report Share Posted April 30, 2011 Also, notice your Date Jump wheel...ETA really needs to use this style. It allows you to quick change the date at anytime you wish! Are you saying that the Asian 7750 can be quickset at any hour without fear of damage, unlike the genuine Swiss piece? Very nice. Link to comment Share on other sites More sharing options...
crossbones Posted April 30, 2011 Report Share Posted April 30, 2011 WOW! THANKS! May I ask where you purchsed the blue tools? Please flood the youtube chan w/ more vids... Link to comment Share on other sites More sharing options...
Bike Mike Posted April 30, 2011 Report Share Posted April 30, 2011 Are you saying that the Asian 7750 can be quickset at any hour without fear of damage, unlike the genuine Swiss piece? Very nice. ONLY if the A7750 has the date jump wheel shown in the picture. If it has the solid brass kind used in older A7750 and ETA movements, then you will damage the works. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now