Horage Autark TourbillonvsMarathon Steel Navigator SSNAV-D Auto

The Horage Autark Tourbillon is noted for its technical achievement as an accessible Swiss-made micro-rotor tourbillon, featuring an in-house calibre with a ceramic ball bearing design and silicon components. It offers a 72-hour power reserve and 100m water resistance within a lightweight Grade 5 titanium 39.5mm case. Reviewers mention that some cosmetic aspects, like the power reserve indicator and dial color, were still being finalized on prototypes. Overall, reviewers highlight the Horage Autark Tourbillon as an audacious and accessible technical accomplishment for its price point.

The Marathon Steel Navigator SSNAV-D Auto is praised for its durable construction, featuring a sandblasted steel case with improved lugs, a bi-directional bezel with excellent action, and 100m water resistance. Owners appreciate the constant visibility provided by self-illuminating tritium gas tubes and the precision of its ETA F06.412 quartz movement, which offers accuracy to about 10 seconds per year. The watch includes a GMT bezel for dual timekeeping and a synthetic sapphire crystal. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Auto highly for its robust tool-watch design and reliable tritium illumination.