Generally, the slide rule is not that useful, except where you want to do regular calculations of the same multiplication. I have a similar citizen watch, and it was really useful for currency calculations while travelling. So, I’m based in UK, and I used to travel to Europe a lot. I’d set the slide rule to the exchange rate, and then I could very quickly understand prices of things.
Generally, the slide rule is not that useful, except where you want to do regular calculations of the same multiplication. I have a similar citizen watch, and it was really useful for currency calculations while travelling. So, I’m based in UK, and I used to travel to Europe a lot. I’d set the slide rule to the exchange rate, and then I could very quickly understand prices of things.