Maggie’s Motivational Pic Thread v2.0 - - New Rules - See Post #1

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Help me get my inner nerd satisfied: how to they make the internal gears? And how in the hell did they do it back in the day?
The company that made that movement is almost 200 years old. I cannot fathom the determination it took to make them back then. Many 100+ years old watches are incredibly accurate considering the technology of rhe time.

This is a gear from a 70's era watch I was servicing last week.....

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That's a quarter it's sitting on.