

In episode 10, "Ganymede Elegy", the watch has a dial that has numerals 1 - 15
on it (it figures prominently in the story's plot).

![the watch](https://i.stack.imgur.com/x42T0l.png)

It takes 7.15 Earth days (around 172 Earth hours) for Ganymede to orbit
Jupiter and the orbit is synchronous. Even if you artificially give Ganymede a
15 or 30 hour day, the numbers don't add up to a complete planetary rotation.

So, what exactly is the watch suppose to be keeping track of?


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2017-03-31T16:10:13.550
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2017-06-27T14:01:49.110
2017-06-27T14:01:49.110
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question
cowboy-bebop
What exactly is the watch suppose to be keeping track of in episode 10?