Around the periphery of the Navitimer is a rotating bezel that contains a functional circular slide rule - a calculation tool that existed in a pre-electronic calculator world.

The watch costs $299 for early birds and the team is raising $50,000 on Kickstarter. They plan on shipping in February 2018 but I saw a working model complete with circular slide rule and was very ...

I like aviator styled watches. Some of them have a a dial on the outside that can be used to compute speed/fuel supply/Oil pressure, but I have never learned how to use these functions myself ...

Every watch includes a 3 inch (8 cm) circular steel slide rule. To ensure you can make the best use of both slide rules, we’re including instructions.

Torgoen has developed a pretty nifty watch, if you were born before the 50s and also had a stint at NASA. The Pilot Watch with Slide Rule features a circular slide rule that is “useful for units ...

From electronic replacements for slide rules to a Machine that can replace every computer ever made in less than 50 years will be fantastic if it works!

Around here we mostly enjoy slide rules. We even have our own collections including some cylindrical and circular ones. But [Mathologer] discusses a recent Reddit post that explains a circular slid… ...

The mather will be the one with the Slide Rule watch from Caliper, and friends, the mather can be you. This mechanical watch runs a Miyota 82S0 automatic movement and features a unique slide rule ...

The watch costs $299 for early birds and the team is raising $50,000 on Kickstarter. They plan on shipping in February 2018 but I saw a working model complete with circular slide rule and was very ...