Sinn 356 PILOT Classic AS EvsMarathon Steel Navigator SSNAV-D Auto

The Sinn 356 PILOT Classic AS E is praised for its excellent legibility, clean bicompax dial, and strong lume, with owners appreciating its fit and finish and attractive gradient dial. The Sellita SW510 BH b movement is noted as reliable, and chronograph functions are responsive, with accuracy reported within COSC parameters at +5 seconds per day. The 38.5mm case, particularly with the domed acrylic crystal, is described by some as wearing tall and appearing "tubby" on the wrist due to its 15.6mm thickness, though others find the sapphire version acceptable for a chronograph. On balance, owners and reviewers rate the Sinn 356 PILOT Classic AS E highly for its vintage aesthetic and strong legibility.

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.