Did you know the name “Navitimer” combines “navigation” and “timer”? In the 1950s, pilots navigated the skies using the slide rule and timed their journeys with the chronograph.

Today, as modern avionics perform these tasks, the Navitimer remains as capable as ever. Just as importantly, its functional components have evolved into some of the most recognizable design elements for watches.

Presented here are three models with different dimensions and metal configurations.

In stainless steel: the reverse panda Navitimer B01 Chronograph 41. The case and dial bears a striking resemblance to some of the earliest models, offering a look grounded in heritage with modern materials and watchmaking technology.

In two tone: the time-only Navitimer Automatic 36. With its sleek mother-of-pearl dial, it adds an element of uniqueness, with the diamond hour markers giving it an elegant touch.

In full 18k red gold: the Navitimer B01 Chronograph 46 with a green dial. The boldest and the goldest. It’s one that enjoys time outside a cuff, and one with the most vivid dial color.