Sinn 155 S Revolution IIvsSinn 356 PILOT Classic AS E

The Sinn 155 S Revolution II is widely praised for its TEGIMENT-hardened, black PVD-coated stainless steel case and sapphire crystal, contributing to its durable tool watch identity. Reviewers note its legible bicompax dial with aged-look Super-LumiNova and a ghost-effect bezel, powered by a Sellita SW510 automatic chronograph movement. Owners report a slight misalignment in the 30-minute counter hand, which Sinn considers within tolerance. The watch's 43mm diameter and 51mm lug-to-lug measurement are considered large by some. Price points vary across sources, with one stating $3600 and another $2500 for this limited edition. On balance, owners and reviewers appreciate the Sinn 155 S Revolution II's robust build and vintage-inspired design, despite its substantial size and a minor hand alignment concern.

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.