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Gear this week: A circular slide rule watch, speakers made of solid wood, and more - HardwareZone.com.sg
![Amazon.com: Zeno-Watch Mens Watch OS Slide Rules Slide Rule Chronograph Date 8557CALTVD-b1 : Clothing, Shoes & Jewelry Amazon.com: Zeno-Watch Mens Watch OS Slide Rules Slide Rule Chronograph Date 8557CALTVD-b1 : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/51ztocjb84L._AC_UY1000_.jpg)
Amazon.com: Zeno-Watch Mens Watch OS Slide Rules Slide Rule Chronograph Date 8557CALTVD-b1 : Clothing, Shoes & Jewelry
![Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,572 for sale from a Trusted Seller on Chrono24 Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,572 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/25336892-4ug1w9j0knmed7p4dm4075l7-ExtraLarge.jpg)
Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,572 for sale from a Trusted Seller on Chrono24
![Reference A23322 Navitimer A stainless steel automatic chronograph wristwatch with date and rotating inner slide rule bezel, Circa 2003 | Fine Watches | 2021 | Sotheby's Reference A23322 Navitimer A stainless steel automatic chronograph wristwatch with date and rotating inner slide rule bezel, Circa 2003 | Fine Watches | 2021 | Sotheby's](https://sothebys-md.brightspotcdn.com/dc/bd/72ba3b9f443ea987584bc8f9725d/n10847-btd2z-45-1-noreserve.jpg)