peyups Posted May 4, 2009 Report Share Posted May 4, 2009 (edited) Has anyone fitted an IWC cal.79350 movement to the IWC Portuguese rep case? Is it a straight swap or there are problems fitting it? I saw a member fitted a 79350 on a rep Ingenieur.. But has anyone fitted a 79350 on their Portuguese? It looks like the 79350 movement is a bit thicker than the A7750 movement.. Edited May 4, 2009 by peyups Quote Link to comment Share on other sites More sharing options...
sander Posted May 4, 2009 Report Share Posted May 4, 2009 I can let you know in the next few days. I have a movement on the way to build an ultimate 3714 Quote Link to comment Share on other sites More sharing options...
peyups Posted May 4, 2009 Author Report Share Posted May 4, 2009 My watchsmith is actually trying to fit it.. there seems to be a problem on spacing he says.. that when he fits the crown to the case its not aligned anymore. The rep dial and hands (except the subdial hands) are straight swap thou. Anyway do let me know. Quote Link to comment Share on other sites More sharing options...
Logan Posted May 4, 2009 Report Share Posted May 4, 2009 The reps have the crown positioned differently as the genuine movement is thinner, or to be exact the transfer gears on the front are thinner. Compare pics of the Port or Ingy chrono's with the genuine and you can see the crown position change. It won't be an easy swap as a spacer might leave the hand mounting shafts too short to clear the dial. Quote Link to comment Share on other sites More sharing options...
peyups Posted May 4, 2009 Author Report Share Posted May 4, 2009 Hmm... what do I tell my watchsmith then? Quote Link to comment Share on other sites More sharing options...
sander Posted May 4, 2009 Report Share Posted May 4, 2009 The reps have the crown positioned differently as the genuine movement is thinner, or to be exact the transfer gears on the front are thinner. Compare pics of the Port or Ingy chrono's with the genuine and you can see the crown position change. It won't be an easy swap as a spacer might leave the hand mounting shafts too short to clear the dial. Hi Logan, Do you know how much the difference is in mm? (approx) @ Peyups: also the centre seconds hand is different. Do you know how your watchsmith solved this? Quote Link to comment Share on other sites More sharing options...
peyups Posted May 4, 2009 Author Report Share Posted May 4, 2009 I don't know.. he just fitted the main chrono hand with no problem I guess. But normally I read you need a broaching tool to fit that. Quote Link to comment Share on other sites More sharing options...
FxrAndy Posted May 4, 2009 Report Share Posted May 4, 2009 you may need a longer canon pin and hour wheel and then a spacer behind the dial to get it all to line up, i dont know if these parts are available though? Quote Link to comment Share on other sites More sharing options...
Toadtorrent Posted May 4, 2009 Report Share Posted May 4, 2009 I don't know.. he just fitted the main chrono hand with no problem I guess. But normally I read you need a broaching tool to fit that. If it's the same as using the A7750 hands on a Valjoux 7750, broaching is the better route, but gentle pressure has been known to work as well. This is from what I have READ here (see the A7750 movement swap references in my Noob Guide for details)...not practiced. Quote Link to comment Share on other sites More sharing options...
peyups Posted May 4, 2009 Author Report Share Posted May 4, 2009 If it's the same as using the A7750 hands on a Valjoux 7750, broaching is the better route, but gentle pressure has been known to work as well. This is from what I have READ here (see the A7750 movement swap references in my Noob Guide for details)...not practiced. Sure I will read it. He told me the main chrono hand has a virgin hole (meaning it was really tight) but he was able to pull it off.. the minute and hour hands was easy to fit thou. While the subdial hands of the portuguese he gave up trying to fit them.. He told me he doesn't have the broaching tool needed. You think this is a good broaching set? http://www.jewelerssupplies.com/Broach-Set.html ? I don't know where a longer cannon pin and spacer can be obtained for this project thou.. I hope I can hear a feedback to those who were able to fit a 79350 to a portuguese here. Or maybe its the same case for ingenieur.. Quote Link to comment Share on other sites More sharing options...
shucash Posted May 4, 2009 Report Share Posted May 4, 2009 Hey guys, I have an inbound gen movement for the 3714 as well. Trying to sort out how to get this swap done. Let's keep this thread going with everyone's experiences and maybe someone can figure out how to do this right. There has to be a way to fit that thing in there. Otherwise I have a very expensive coaster. Argh. shu Quote Link to comment Share on other sites More sharing options...
Toadtorrent Posted May 4, 2009 Report Share Posted May 4, 2009 You think this is a good broaching set? http://www.jewelerssupplies.com/Broach-Set.html I don't actually do this kind of work...just like to read, search, learn. However, there are those who I trust absolutely, who do: Watchdog and Broaching There's a post by Watchdog who essentially says that broaching is not as simple as picking the right tool, cutting and you're done. It's iterative...meaning you need to under-cut, test fit, maybe cut some more, test fit again, etc, until it actually fits. So, having a "specific" sized tool does not necessarily mean the right solution. In other words, even with the right tool you should still creep up to the "right" size by testing incrementally to get the fit you need. Quote Link to comment Share on other sites More sharing options...
sander Posted May 4, 2009 Report Share Posted May 4, 2009 Hey guys, I have an inbound gen movement for the 3714 as well. Trying to sort out how to get this swap done. Let's keep this thread going with everyone's experiences and maybe someone can figure out how to do this right. There has to be a way to fit that thing in there. Otherwise I have a very expensive coaster. Argh. shu He Shu, What is the problem you see? I have heard it's thinner than the rep so the movement sits higher in the case. because of this the stem doesn't line up. Is this true? Is there perhaps a way you can measure the difference between the rep and the gen? Quote Link to comment Share on other sites More sharing options...
Logan Posted May 4, 2009 Report Share Posted May 4, 2009 The easiest solution might be to bring the dial back so everything lines up. You would need either a round spacer which would be tough to make or perhaps some dots of the appropriate thickness. The only downside would be some visible gap from the front. With a black dial I suspect this would not be visible. @Sander I don't know the thickness difference, I'd guess 0.5 to 0.75mm perhaps? Quote Link to comment Share on other sites More sharing options...
sander Posted May 5, 2009 Report Share Posted May 5, 2009 @Sander I don't know the thickness difference, I'd guess 0.5 to 0.75mm perhaps? If the difference is less than 1mm, I probably know how to fix it. I'm expecting a movement this week so I'll let you know. Ciao, Sander Quote Link to comment Share on other sites More sharing options...
peyups Posted May 5, 2009 Author Report Share Posted May 5, 2009 Let me know too sander.. I am considering sending it to speedy as he said he thinks he can do it.. but that's not an assurance ofcourse. Quote Link to comment Share on other sites More sharing options...
sander Posted May 6, 2009 Report Share Posted May 6, 2009 Ok, I received my 3950 movement yesterday and did some measuring. Rep Gen Difference A 8,19 mm 6,98 mm 1,21 mm B 3,19 mm 2,08 mm 1,11 mm C 30,39 mm 30,35 mm 0,04 mm As Logan described, the problem is that the crown stem doesn Quote Link to comment Share on other sites More sharing options...
peyups Posted May 6, 2009 Author Report Share Posted May 6, 2009 Gen bezel ring, gen dial and gen hands. -- then gen movement.. so overall how much would have that cost? I hope still not close to the gen watch. Anyway goodluck with this modding.. good for you that you have the tools. Do let me know how everything turns out. Quote Link to comment Share on other sites More sharing options...
Guest Masterle Posted May 20, 2009 Report Share Posted May 20, 2009 Is there any news about the fitting ? Quote Link to comment Share on other sites More sharing options...
Guest asim Posted May 20, 2009 Report Share Posted May 20, 2009 Is there any news about the fitting ? there you go buddy, just a few threads down... http://www.rwg.cc/members/fit-IWC-79350-movement-t97626.html Quote Link to comment Share on other sites More sharing options...
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