As long as the power is restored in 79 minutes I suppose.
It's the most hideous thing I've ever seen implemented in an instrument, or anything else come to think of it. I'm just glad my car radio isn't Technics or I'd probably have to retune my stations every day, or start the engine every 80 minutes.
I quite like it, but I'll be going back to Yamaha as soon as funds allow (not that I have any choice if buying new)

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Cheers.