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Rebuilding SH3135 with genuine parts

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    Rebuilding SH3135 with genuine parts

    Hello everyone!

    I have recently purchased a new SH 3135 and I’m starting to buy genuine parts to build this puppy up for my Sub 116610 LN. A really good thread that helped me was( https://forum.replica-watch.info/for...ntial-upgrades ) but I have additional concerns and I’m trying to get part numbers for additional parts. The parts I’m looking to swap also are the parts responsible for the manual winding of this movement, it feels very cheap and garbage at the moment. So far I have the following part list on the search or already purchased. Another question I have, is it bad to buy used parts? Or should I only stick to brand new parts? Thank you all for the help and for those who provided priceless information on the post mentioned above. Cheers.


    3135-614 Date Jumper
    3135-645 Date Corrector
    3135-204 Winding Pinon
    3135-625 Date Wheel Mounted
    3135-623 Finger for Date
    3135-145 Complete Auto mechanism (includes two reversing wheels)
    3135-130 Winding bridge
    3135-600 Date Indicator Seating
    3135-670 Intermediate Date Wheel
    3135-205 Sliding Pinion Wheel / Clutch Wheel
    3135-280 Hour Wheel

    occb2, ado213, 2fake4u, misiekped

    #2
    Sorry I’m new at this and I don’t think my tags worked correctly?
    occb2 misiekped ado213 2fake4u

    Comment


      #3

      Here are my thoughts on the SH 3135 and the fitting of gen parts. I'm sure our other esteemed watchsmith's have their own views on this and their thoughts are always gratefully appreciated.

      Your list of replacement parts is comprehensive, but the majority of parts don't deal with the underlying issues in this movement.

      Yes the autowind bridge is an upgrade as the autoreversers in the SH are poor and have been from day one. Whether its actually worth changing the complete bridge is questionable

      Winding pinion and sliding pinions are also a good upgrades as the steel quality of the rep parts again is not the best, it tend to be softer and not hardened as the gen. But to be fair Cousins UK do sell non OEM parts for these at half the cost, which are quite good.

      I notice that the majority of the other parts you are changing are on the dial side of the watch ie calender mechanism. As far as I am aware there are no major defects in the calender parts of the rep,

      Ok all that said, down to original statement on the underlying issues with the SH 3135 Mechanism, I'll just type a list and let you pick the bones out of it

      1) escapement is very poor, pallets set incorrectly, hairspring poorly formed, balance jewel holes not round or too big for the staff ( not always)
      2) Due to poor jewelling the balance wheel runs out of true on some, unequally burnished balance staff tips, causing DU and DD anomalies'
      3) unhardened fourth wheel, existing bends very easily due to its softness
      4) incorrectly set barrel jewels, barrel rubs on mainplate ( not always)
      5) incorrectly set pallet jewels
      6) out of round gears
      7) poor gear cutting on 3rd and 4th wheel especially
      8) Regulators on balance bridge do not turn concentrically to the cap jewel making it a bit of an art form to time in.
      9) Machining burrs left in all sorts of places on the mainplate and the balance wheel itself, how they actually poise this is beyond my skills. any of these breaking off during wearing will upset any regulation your watchsmith has performed.

      I'm sure I've missed a few off, but these are the main ones. Whilst they seem petty anyone of these can cause you major issues with time keeping.

      So to cap off, the SH is obviously a replica movement and not genuine, any amount of gen parts, whilst improving the mechanism will not improve the time keeping of the watch. There are good Sh's and poor SH's. Some have none of the above faults, some have all !!

      One thing to compare and ask a question about is the pallet bridge, rep v gen. On the rep there are adjustable banking shoulders on the gen none, why??
      Well that's and easy answer, the adjustable banking shoulders allow for adjustment of the pallet entry and exit. On a gen these simply aren't needed as the manufacturing tolerances are so tight

      Most low grade movements ( apart from older watches) have adjustable banking pins. Older watches had them as again manufacturing tolerances back in the day were a lot lower than present.

      Hope this helps






      Comment


        #4
        Originally posted by ado213 View Post
        Here are my thoughts on the SH 3135 and the fitting of gen parts. I'm sure our other esteemed watchsmith's have their own views on this and their thoughts are always gratefully appreciated.

        Your list of replacement parts is comprehensive, but the majority of parts don't deal with the underlying issues in this movement.

        Yes the autowind bridge is an upgrade as the autoreversers in the SH are poor and have been from day one. Whether its actually worth changing the complete bridge is questionable

        Winding pinion and sliding pinions are also a good upgrades as the steel quality of the rep parts again is not the best, it tend to be softer and not hardened as the gen. But to be fair Cousins UK do sell non OEM parts for these at half the cost, which are quite good.

        I notice that the majority of the other parts you are changing are on the dial side of the watch ie calender mechanism. As far as I am aware there are no major defects in the calender parts of the rep,

        Ok all that said, down to original statement on the underlying issues with the SH 3135 Mechanism, I'll just type a list and let you pick the bones out of it

        1) escapement is very poor, pallets set incorrectly, hairspring poorly formed, balance jewel holes not round or too big for the staff ( not always)
        2) Due to poor jewelling the balance wheel runs out of true on some, unequally burnished balance staff tips, causing DU and DD anomalies'
        3) unhardened fourth wheel, existing bends very easily due to its softness
        4) incorrectly set barrel jewels, barrel rubs on mainplate ( not always)
        5) incorrectly set pallet jewels
        6) out of round gears
        7) poor gear cutting on 3rd and 4th wheel especially
        8) Regulators on balance bridge do not turn concentrically to the cap jewel making it a bit of an art form to time in.
        9) Machining burrs left in all sorts of places on the mainplate and the balance wheel itself, how they actually poise this is beyond my skills. any of these breaking off during wearing will upset any regulation your watchsmith has performed.

        I'm sure I've missed a few off, but these are the main ones. Whilst they seem petty anyone of these can cause you major issues with time keeping.

        So to cap off, the SH is obviously a replica movement and not genuine, any amount of gen parts, whilst improving the mechanism will not improve the time keeping of the watch. There are good Sh's and poor SH's. Some have none of the above faults, some have all !!

        One thing to compare and ask a question about is the pallet bridge, rep v gen. On the rep there are adjustable banking shoulders on the gen none, why??
        Well that's and easy answer, the adjustable banking shoulders allow for adjustment of the pallet entry and exit. On a gen these simply aren't needed as the manufacturing tolerances are so tight

        Most low grade movements ( apart from older watches) have adjustable banking pins. Older watches had them as again manufacturing tolerances back in the day were a lot lower than present.

        Hope this helps





        just bought a mvt to tinker with....me not happy....

        Comment


          #5
          Originally posted by ado213 View Post
          Here are my thoughts on the SH 3135 and the fitting of gen parts. I'm sure our other esteemed watchsmith's have their own views on this and their thoughts are always gratefully appreciated.

          Your list of replacement parts is comprehensive, but the majority of parts don't deal with the underlying issues in this movement.

          Yes the autowind bridge is an upgrade as the autoreversers in the SH are poor and have been from day one. Whether its actually worth changing the complete bridge is questionable

          Winding pinion and sliding pinions are also a good upgrades as the steel quality of the rep parts again is not the best, it tend to be softer and not hardened as the gen. But to be fair Cousins UK do sell non OEM parts for these at half the cost, which are quite good.

          I notice that the majority of the other parts you are changing are on the dial side of the watch ie calender mechanism. As far as I am aware there are no major defects in the calender parts of the rep,

          Ok all that said, down to original statement on the underlying issues with the SH 3135 Mechanism, I'll just type a list and let you pick the bones out of it

          1) escapement is very poor, pallets set incorrectly, hairspring poorly formed, balance jewel holes not round or too big for the staff ( not always)
          2) Due to poor jewelling the balance wheel runs out of true on some, unequally burnished balance staff tips, causing DU and DD anomalies'
          3) unhardened fourth wheel, existing bends very easily due to its softness
          4) incorrectly set barrel jewels, barrel rubs on mainplate ( not always)
          5) incorrectly set pallet jewels
          6) out of round gears
          7) poor gear cutting on 3rd and 4th wheel especially
          8) Regulators on balance bridge do not turn concentrically to the cap jewel making it a bit of an art form to time in.
          9) Machining burrs left in all sorts of places on the mainplate and the balance wheel itself, how they actually poise this is beyond my skills. any of these breaking off during wearing will upset any regulation your watchsmith has performed.

          I'm sure I've missed a few off, but these are the main ones. Whilst they seem petty anyone of these can cause you major issues with time keeping.

          So to cap off, the SH is obviously a replica movement and not genuine, any amount of gen parts, whilst improving the mechanism will not improve the time keeping of the watch. There are good Sh's and poor SH's. Some have none of the above faults, some have all !!

          One thing to compare and ask a question about is the pallet bridge, rep v gen. On the rep there are adjustable banking shoulders on the gen none, why??
          Well that's and easy answer, the adjustable banking shoulders allow for adjustment of the pallet entry and exit. On a gen these simply aren't needed as the manufacturing tolerances are so tight

          Most low grade movements ( apart from older watches) have adjustable banking pins. Older watches had them as again manufacturing tolerances back in the day were a lot lower than present.

          Hope this helps





          Thank you for this detailed response. I guess the best way to find out what really is needed is by sending it to someone knowledgeable who can look at it and check what really needs to be changed and worked on. I’m really new to this game and this is my 1st rep project. In other words, I only know what I read and search.

          Comment


            #6
            Can anyone tell which version of the SH3135 this is? Does it make any difference?




            Comment


              #7
              I rarely recommend putting gen parts in them. As Ado said, some are fine and some aren't. They are cheap enough, and again, as Ado pointed out, most these gen parts don't really help much in terms of reliability. It's the gears and balance that have the most issues.

              A good way to go about these, or any clone movement, is if it's not broken, don't fix it.
              I buy broken watches

              SH3185 GMT 116710 Build
              ARF 904 Steel Testing

              Comment


                #8
                As for used vs new parts, most the time, the used parts are left over from a service. So they replaced worn out parts with the new and then sell the worn out pieces
                I buy broken watches

                SH3185 GMT 116710 Build
                ARF 904 Steel Testing

                Comment


                  #9
                  Originally posted by 2fake4u View Post
                  I rarely recommend putting gen parts in them. As Ado said, some are fine and some aren't. They are cheap enough, and again, as Ado pointed out, most these gen parts don't really help much in terms of reliability. It's the gears and balance that have the most issues.

                  A good way to go about these, or any clone movement, is if it's not broken, don't fix it.
                  Thank you for the advice. I appreciate it.

                  Comment


                    #10
                    I can install gen Balance on sh3135?

                    Inviato dal mio SM-J600FN utilizzando Tapatalk

                    Comment


                      #11
                      No

                      Comment


                        #12
                        How can someone locate a complete Gen Movement for a swap. Really failing to find one.

                        Comment


                          #13
                          Originally posted by OmegaRox View Post
                          How can someone locate a complete Gen Movement for a swap. Really failing to find one.
                          Was one for sale here, and have Been a couple Over on rep geek. Just keep an eye out.


                          Sent from my iPhone using Tapatalk

                          Comment


                            #14
                            Very nice


                            Inviato dal mio iPhone utilizzando RWI

                            Comment

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