What does that show on the Grand Seiko?

Is it like the moon phases or what? I love how it looks, really fits to the rest of the watch but don't understand what it represents.

Reply
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Is it the level of the power reserve?

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It’s power reserve.

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Yes, power reserve

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its a gauge  how happy you are , if you get angry the watch will turn red ....some people call that a power reserve ...so..yer 

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that would be the flux capacitor.

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It's the power reserve indicator