I created a working clock in A Book About Hype. It actually displays the current time – IN THE BOOK ITSELF!
I used the Hype API to make the clock hands move like they're ticking. They don't bounce though. That's not an option in the "set" "optionalTimingFunctionName" API.
hypeDocument.setElementProperty(element, propertyName, value, optionalDuration, optionalTimingFunctionName)
Maybe the Apple Watch will help make that skill more common