Marathon Steel Navigator SSNAV-D AutovsSugess Tourbillon Master SUEARTH

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.

Owners praise the Sugess Tourbillon Master SUEARTH for its legible dial and the visual appeal of its beating tourbillon, offering an accessible entry into tourbillon watches. However, the strap and buckle are noted as comically large, and the screw-down crown and winding stem are described as flimsy. Some owners question the value proposition, finding the price high for the perceived quality, and express concerns about long-term durability and serviceability of the ST8230 movement. On balance, owners find the Sugess Tourbillon Master SUEARTH to be a functional tourbillon that works as intended, though its value is debated among the community.