Slide rule bezel
![[[Breitling Navitimer]]\\ with **slide rule bezel** (click to enlarge!)](/lib/exe/fetch.php?tok=43cdea&media=https%3A%2F%2Fwww.uhren-wiki.com%2Fimages%2FBreitling_Navitimer.jpg "[[Breitling Navitimer]]\\ with **slide rule bezel** (click to enlarge!)")
Breitling Navitimer
with slide rule bezel
© Breitling
A slide rule bezel is a rarer form of a turnable bezel. It is typical for many models by Breitling, eg the widely known model Breitling Navitimer.
Here, the bezel has a logarithmic scale. If the turning ring is displaced relative to the fixed part, arithmetic operations such as multiplication or division are possible (addition means multiplkation, subtraction means division, see: explanation with examples).