====== Slide rule bezel ====== {{wst>image_cl|Breitling|Navitimer|[[Breitling Navitimer]]\\ with **slide rule bezel**}} A [[slide rule bezel]] is a rarer form of a [[turning bezel|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: [[http://www.rechenwerkzeug.de/logrech.htm|explanation with examples]]). {{tag>Terms}}