The ‘Caliper Slide View’ combines a swiss quartz watch with an icon of pre-electronic technology: the slide rule.

Like our other watches, it’s a design inspired by mid-twentieth century technical instruments; the precision tools that scientists and engineers relied on before electronics became ubiquitous.
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. After all, using a slide rule has become a lost art.

Technical Specs
- Case milled from 316L steel
- Black surface applied as ion plating (IP)
- Sapphire scratch resistant glass
- Glass on back of case
- Semi-transparent watch face
- Case diameter 43mm
- Case thickness 13mm
- Water resistant to 10 ATM (100m)
- Screw down crowns
- Miyota 82S0 movement
- Manual and self-winding
- 21 Jewels
- 21,600 vibrations per hour
- 40+ hours of running time
Versions
The A1O features a black case and black interior slide rule with a dark, semi transparent watch face and an orange second hand:
Version B3O features a brushed stainless steel case and band. The face is a crisp opaque white face with black markers.
Version B4O features a brushed stainless steel case and band. The face is a transparent face with black markers.