Sinn 6012vsMarathon Steel Navigator SSNAV Auto

The Sinn 6012 is a handsome, complicated chronograph featuring five dial-side complications, including a moon phase, built on a modified ETA 7751 movement. Reviewers note its clean dial offers good legibility, though one wished for a red accent on the date pointer. One long-time enthusiast considers the Frankfurt series, including the 6012, to be overpriced. The 14.5mm thickness makes it a slightly tall dress option. Overall, owners and reviewers find the Sinn 6012 to be a well-executed, complicated chronograph, with the primary reservation being its perceived value.

The Marathon Steel Navigator SSNAV Auto is praised for its high-accuracy quartz movement, with owners noting its comfort and reliable performance. Reviewers highlight its functional tool-watch appeal, featuring a sandblasted steel case, tritium tubes for constant low-light visibility, and 100-meter water resistance. One owner finds the 41mm case runs a bit small. The Marathon Steel Navigator SSNAV Auto utilizes an ETA F06.412 quartz movement with a claimed accuracy of +/- 10 seconds per year and includes a GMT bidirectional bezel. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV Auto highly for its comfortable wear and dependable, high-accuracy quartz movement.