Steel Navigator

The Marathon Steel Navigator was originally developed in collaboration with military pilots, designed to meet stringent specifications for use by NATO forces. Unlike the more common composite-cased Navigator, this steel version offers a heftier feel and increased durability, making it a standout for collectors who value both authenticity and ruggedness. Its Canadian origin and direct ties to military contracts add to its appeal, especially among those seeking a tool watch with genuine field pedigree.

Reference numbers such as the SSNAV-D distinguish the steel-cased variant from the standard fiber shell version, and this difference is a primary driver of price variation on the secondary market. The steel case not only changes the watch's weight and presence on the wrist but also tends to age differently, developing unique wear patterns over time. Buyers should note that tritium tube dials are standard, offering constant low-light visibility—a feature often sought after in military-issued pieces.

The watch runs on the reliable ETA F06 quartz movement, valued for its accuracy and low maintenance. Water resistance is rated to 60 meters, sufficient for daily wear and most field conditions, though not intended for deep diving. When considering a purchase, check for original box and papers, as complete sets can command a premium, and be aware that earlier production runs may have subtle dial or hand differences that some collectors prefer.