I’m a fan of the timegrapher app for Iphone and have been using it for a long time, with reasonable result for my needs.
My assumption is that the weak spot is the mic where you are using the built-in mic in the head set that comes with the phone.
My question is if there’s any experience out there from building/adapting an alternative mic to plug into the head set input on the phone.
I have seen many posts where people have designed pc s/w and built mic’s that plug into your pc and I would guess one could do the same with the Iphone.
Any feedback is appreciated.
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If you suspect the autowinder, I just remove the module, normally the two screws that tighten the module to the gear bridhe are darker in color. Yes long screws can be the cause. Also check the ratchet wheel reduction wheel, its arbor drops in jewel hole in barrel bridge.
The movement is vitually a manual wind once the winder module is removed.
We can monitor the patern it stops,which can tell where to look for the faulf.
Anytime were working with American pocket watches it's nice to have the serial number especially when looking for parts. Then because this is not your normal 12 size it's extra thin looks like you're right it's a friction jewel setting. So image extracted from a listing so we get the diameter and the thickness. Then the other minor problem with Illinois all the different part numbers to make for a confusing mess.