Bike speedometer

I have Bell branded bike computer that measures speed, distance, and time. It flashed the warning that the battery was low, so I peeked at the watch battery inside so I would know what replacement to get.

It is a CR1142 battery.

And now the computer has lost its settings. I tried to find the user manual on the web, but alas, Bell doesn't seem to make or support anything but helmets anymore. So I'm stuck with trying to find the user manual in somewhere in meat space. Which is NOT Google indexed.