Timex used to make an “internet watch”. It was basically a pager that also worked as a watch. The pager function updated the time automatically, so that when I travelled across time zones in the usa the watch would automatically set to local time. It also came with an email address, which was basically the pager number@serviceprovider.com. I could receive emails and scroll through them one line at a time on the watch. This was the best watch I’ve ever owned.
Unfortunately, the battery in this watch lasted only about 2 months. Each time you replace the battery, you end up further destroying the waterproof seal. The result is that humidity, sweat seep in and corrode the insides. The watch stopped worked about a year ago.
Here is the PCB inside the watch. The corroded receptable for the battery can be seen. Look for the vibrator alert, which is basically a solenoid.
