Caliper Slide Rule Wristwatch
Caliper’s wristwatch has a circular slide rule around the dial. Turn the slide rule using the crown to multiply or divide. The watch has a self-winding movement, a stainless steel case and a sapphire glass crystal. It’s water-resistant up to 328ft.
Crowdfunded projects pose a degree of risk for buyers, so be sure to do your research and fully read the seller's detailed description and production plans before plunking down your hard-earned money.
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