I BUILT A WATCH OUT OF JUNK PARTS. Rusty Chronograph Parts to Full ETA 7750 Chronograph Restoration.

many independent was repair us our hoarders we never seem to want to throw anything away in order to provide quality repairs a what Ribera will usually replace any worn broken or corroded parts as a matter of course this is often non-negotiable a what repair we'll be striving to achieve the highest possible level of performance from the watch movement once the work is complete and if the owner of the watch is prepared to pay for this level of service well then that obligation is clear but what happens to those parts which have been replaced well really they should be discarded never to be placed in a watch movement again surely it would be sacrilege to use them in any meaningful way this goes against the grain we need spotless brand new parts when servicing watches end of story I don't throw them away I'm one of those hoarders usually unless a part is completely beyond use I'll keep it just in case I was doing some cleanup an organization recently and found a few boxes of values 7750 Parts I remembered some of the parts were from a rusted Breitling others were from another repair job where most of the movement was replaced due to poor previous work and I guess others were from random jobs here and there there are so many parts I wondered if there be enough to make a full movement out of them I had some new parts in packets too in my past drawer and I started to think that it might make a fun project to see if I could clean up the old scrap bits and bobs and see what happens I very much doubt that the movement would even work yet alone keep good time I mean these parts were in the scrap draw for a reason right they're junk oh oh I know let's just give it a go the first thing to do is sort through all the parts and choose the cleanest pass which will give the highest chances of success and as you can see I've spread all the parts out on my bench and they're filthy some are corroded others dirty and some are new old stock it looks like I might have everything but let's find out I'll start by selecting an escape wheel the second wheel this has a long lower pivot [Music] the third wheel noticeable with its large stubby pinion and it's extended Arbor and the Great Wheel now I look for some pellets and I choose the best of the bunch [Music] the palette the stop lever the cram will [Music] I have a crown wheel core is a little bit corroded but doesn't look too bad now of course I need a barrel in the mainspring and a ratchet wheel [Music] and now I can select my winding pinion and now I can select my sliding pinion I need a yoke spring and a winding stem the setting lever and the yoke [Music] this part is called a rocking bar the setting wheel the intermediate setting wheel and the setting lever spring [Music] this is part of the chronograph the mini counter spring luckily I have a balanced assembly with an etic run system a driver can opinion [Music] the ratchet wheel driving wheel the coronagraph cam [Music] the hammer cam jumper [Music] the switch [Music] the coronagraph bridge [Music] the 60 seconds oscillating pinion the chronograph wheel friction spring [Music] the minute counter driving wheel the operating lever [Music] the to function lock now it looks like this cronograph wheel is beyond clean up the top pivot and the cam are both corroded beyond Salvage I do not have a second option so I'm just going to have to order a new one my initial plan for this challenge was to only use parts from my stock but I guess I have no choice I need to spend some money [Music] on the bright side this reduction wheel looks okay and this clutch looks clean as new I don't recommend reusing reversing wheels these are usually quite fast wearing in 77 50s - 8 9 2 s 2 8 2 4 and their variants and it's recommended to replace them even if they look ok but not today this looks ok I'm using it I have a new in packet minute counting wheel so I'm going to use that [Music] you this is the automatic device bridge it looks pretty much perfect but I'm not going to use it I'll explain later now I need a recon opinion and intermedia calendar driving wheel a minute wheel [Music] the day and date driving wheels [Music] I have a couple of our counting wheels both not amazing I'll just choose the cleanest I need a chronograph hammer you and our hammer the our counter lock our hammer operating lever [Music] and the our hammer spring [Music] I have only one date platform and it's not perfect but we can work with it [Music] I will need both day and date jumpers the date jumper is a little bit corroded but I only have one the jumper spring and the date jumper maintaining plate the double corrector the date indicator maintaining plate the chronograph hammer spring [Music] the clutch spring [Music] the hour wheel [Music] and this retains the day disc I have a new day disk in this packet [Music] and I have a date disk [Music] well this is all looking positive so far I have most of the parts but looks like I will need to order a coronagraph wheel I also noted I do not have a screw for the balanced assembly but I'm sure I can make one I'm just going to clean up a bit and then we'll take a look at the main place [Music] or almost forgot the oscillating wait [Music] [Music] and these are non salvageable they're going in the bin some left with two main plates and two barrel and train wheel bridges the most rusted ones have a nice galosh pattern so if possible I want to use those I don't hold much hope but I'm going to try I'm going to soak all the rusted parts in this rust remover made by wd-40 I've used this before and it's quite effective you I soaked the parts for about an hour as you can see I also have another automatic device bridge in the rust remover with a nice pattern is quite rusty the brass post is broken and the old rotor bowl races rusted solid in place but I want it so I'm going to try and salvage it you you [Music] [Music] you I can't get those rusted screws to move and I don't want to push my luck with the rust remover damaging the plating so I'll try a good old dose of wd-40 [Music] you in the meantime I have many more parts to D rust and clean I soak these overnight and now I'm going to try and clean them further I managed to remove the rusted bull race the post is broken and the center jewel and post was beyond repair I can replace them from the other bridge later you [Music] [Music] the main plate is a different story I really don't hold much hope with this one [Music] you [Music] [Music] you [Music] [Music] you and as I suspected the screws are just way too rusted and are really locked into place I suppose I could use a stronger acid to dissolve them but the plating would possibly get damaged and they require few steel posts embedded in the plate and these would also get damaged now I'm gonna have to use the other play [Music] you [Music] you [Music] you [Music] but this plate has its own problems the reason I have it is because it was replaced after I observed this scoring under the balanced caused by a watch repair er who was overly enthusiastic with their graver no doubt they were attempting to resolve a timing issue and made a damn ugly job of it it ended up in my care and I just decided to replace the whole thing but it looks like I have no choice I've got to use it I will be honest at this point my hopes were slipping in regards to making this movement function as a good time keeper although I was fairly confident by now that we had a working movement but dentally I was not confident at all that it would be accurate in the least but I am like a dog with a bound sometimes so I just carried on I started with the automatic device bridge and as you may remember I wanted to use the patent one and fix it with the parts from the bland version that I have using my staking tool I removed the reduction wheel post and the center wheel jeweled screw post you [Music] you [Music] you you [Music] I removed the broken reduction wheel post and then I replaced it with the good one you and finally I pressed in the jeweled screwpost now with that done I noticed one of the jewel bearings was missing from my main plate I have one in the other plate so I can use that using my dueling press I removed the jewel that I needed you [Music] you and I pressed it into my main plate these jewels are freakin fitted now these divots are really really ugly I can't make that ugliness go away but I will smooth them over and remove the burrs so that the balance will sit flat when I eventually did it I know that the divots were made for a reason usually a lazy way to adjust balance n shake I've done it myself with some cheap movements I'm pretty sure that the reason this was done will become apparent to me later though we shall see but for now I'm smoothing them away as best I can I mentioned that I did not have a screw for the balance so I made one off-camera this is just a bit of blue pivot steel which I turned down on the lathe and I made a thread I'll part it off and make a slot but now I can assemble the movement I have cleaned all the parts my strategy is now to assemble and lubricate the movement quickly to see if a it works and B if it does work what preliminary performance I may get out of it now if we get a good result I can strip it down clean and lubricate it again with much greater attention to detail so sorry if the parts are not yet 100% cleaned this is a preliminary rebuild please don't judge and I'm starting with the mainspring barrel and train wheels [Music] [Music] and I fit the train wheel bridge [Music] now I fit the keyless works [Music] [Music] you [Music] and I can fit the escapement and we'll see what gremlins we may have with the timekeeping [Music] [Music] well is taking that positive I guess [Music] I'm now testing the movement with my timing software and I can see that it does not look good between every take and talk there's a lot of noise indicating a definite problem to deal with I'm not concerned with the rate at this time but further evidence of an issue as if we needed it is indicated here by this rather low amplitude first thing to check is the balance spring is it straight and if not is it rubbing on either the balance wheel or the balance and I can see that it's not completely flat it seems to be pivoted up at the stud but I can also see that it is not actually touching with the balance wheel or and so I don't think that's the issue but I've straightened it up and have placed it back on the timer and indeed the results were the same what was a problem though was the lower income lock setting to me it looked out of source as possible the balance staff was not setting parallel in the dual hole as a result and this may explain the divots on the main plate the previous repairer attempting to compensate for the problem I'm not sure but I'm going to replace the setting and we'll see if it makes a difference [Music] you and well yes that made a remarkable difference as you can see the noise between the beats is negligible and the amplitude is vastly improved as a result are played with the rate and it seems a lot better it's not an incredibly clean reading but it's heading in the right direction let's move on and continue the coronagraph parts [Music] you [Music] [Music] [Music] [Music] you probably already spotted it but I had a big camera lens in my way I still have a rusted screw embedded in this post I have to disassemble again and replace the screw post and with the magic of video that's done I can continue and here we go again like a complete idiot I fail to notice that the screw post was missing here I'll have to strip it down yet again replace it and I'll be back in a moment [Music] [Music] [Music] [Music] those screws seedings look really rough under this magnification but under the naked eye is hardly noticeable you [Music] [Music] [Music] you [Music] [Music] [Music] [Music] [Music] now I'm ready to try the dial and hands for size and try it in the case and speaking of the case dial and hands I didn't have these on hand but I managed to find this listing of a 1970s new old stock case from a seller in Switzerland the dial is a little bit bland but the case looked absolutely amazing to me so I've heard his death I understand that the case is original from the 1970s with the standard screw back being replaced for a display back seemed like a bargain at a hundred and fifteen US dollars and here we can see another Muppet mistake I don't know why but I had it fixed in my head that the dial had purchased was a date only version and clearly when I first selected my past I had selected the day calendar pass but when it came to assembly I did not fit them thinking my dial was date only now I have to strip down the calendar and place the pass correctly it must be nearly time for Scotch surely [Music] you [Music] you [Music] [Music] [Music] you you [Music] now the case is really nice but I had a small problem in that the reset pusher is not quite long enough if I start and stop the chronograph I should be able to reset the chrono to zero but the lever is not being pressed deep enough to push the cam I took out the pusher screw in order to strategize I had two choices either to make a longer screw which is what I would normally do but in this case I can see that the screw cavity is quite deeply recessed and so I have an opportunity to simply create a sleeve in order to effectively extend the length of the screw I faced off some pivot steel in my lathe and then I drilled a hole deep enough and weave a diameter so that it slides over the pusher screw head I made it slightly longer than I needed it and I parted it off and then cleaned up the other end [Music] [Music] you [Music] and now this can be fitted over the screw and will be held to secure by the operating arm in the watch and this effectively makes the screw longer in a non-destructive way you [Music] [Music] and now I can cut the stem to size and fit the crown supplied with the case [Music] [Music] [Music] you [Music] you [Music] you [Music] [Music] [Music] and finally I can fit the oscillating weight and finish with the casing up process [Music] [Music] you [Music] [Music] you [Music] and I think it looks rather good the case to me actually looks quite amazing the dial is less than amazing and I may change it in the future but for now I need to strip this watch to pieces again and really give it my attention and that's it thank you for making it this far and thank you for watching in the first place the what's repair channel is just a cat's whisker away from a hundred thousand subscribers which seems crazy to me but I want to thank everybody who supported me and the channel until now you guys are awesome but if you are not subscribed it's free just click the subscribe button below and the bell icon which appears next to it and you'll be informed whenever I publish new content and this video was made possible with the support and the assistance from my patrons and I want to thank you all very very much see you next time [Music] you you

Channel: Watch Repair Channel

Views: 498,928

Keywords: watch repair channel, watch repairs, watch repair lessons, watch service, mark lovick, watchrepairtalk.com, watchrepairlessons.com, valjoux 7750, watch restoration, restoration projects, eta 7750, rusty watch, water damage, scrap watch, watch diy, rust removal, recycling, recycling project, restoration, watch building tutorial, watch building parts, build a watch from ebay parts, build a watch from scratch, build a watch from parts, build a watch at home, build a watch kit

Id: PogxQ0O4vQs

Length: 42min 39sec (2559 seconds)

Published: Fri Jul 05 2019