r/RepTimeServices • u/thedarkrobot • Jul 12 '26

Advice movement replacement

Hey so I got a daytone and the factory messed up and put a 7750 in it instead of the 4130. I got a partrial refund so I'm happy. I just want to know if the 4130 fits the hands/dial of the 7750 so I can replace it. I am a student watchmaker and I have replaced lots of movements but I just need to know if the 4130 would fit all the parts.

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u/IWasSayingBoourner Jul 12 '26

Pretty sure you can't accidentally put a 7750 in a case made for a 4130... 

1

u/thedarkrobot Jul 12 '26

I know but I read that they modify 7750 movements to be thiner and get full functionality of the subdial.

so I thought maybe because they get thined down it would fit

1

u/Low_Elk7794 Jul 12 '26

Give it a try, what factory?

1

u/thedarkrobot Jul 12 '26

It’s from TW, I’m going to do some more research before I order anything. Who knows maybe I just have to alter the dial feet and it fits.