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Pocket Watch
It was a Watch that did not require falling weights, and you could carry it around in your pocket -
Pocket Watch On Wrists
You could later on wear it on your wrist. They applied a strap- watch in the middle, (two ends) had something connecting the ends together. -
Wristwatch Become Water/Dust Resistant
These Watches could be put underwater and it wouldn't mess up. -
Electronic Watches
These Watches were powered by a battery. -
Calculator Watch
This was a Watch that you could see the time as well as do math. -
Connected Watch(Reborn)
It involved using Bluetooth and WiFi, this would then let you see all the texts, calls, etc., that you received on your phone. -
Conclusion
Watches changed over time because it was visible and convenient for many people since it helped with their daily schedule and plans. Due to many people needing to know the time, the improved technology was able to upgrade watches unlike the Analog Watch.