That part always breaks. So old stock is all used up from people decides ago. I can check the old stock at work. It's most likely don't have anymore though.
That's honestly not that bad of a price for the condition it is in. It's essentially museum grade. The original price was a whole month salary for the average Japanese worker back then.
Seen these in person. They are definitely not worth $400. They are quite cheaply made with plated cases and cheap quartz movements. Would never pay more then $100.
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