Marathon Steel Navigator SSNAV-D AutovsSeiko Seiko power design project collection 1 collection 1 Limited Edition

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.

The Seiko power design project collection 1 collection 1 Limited Edition features a stepped-case design that some owners find mesmerizing. One owner favors the golden-dial rectangular model but would prefer it without PVD. The collection includes three unisex bracelet models with stainless steel cases measuring 20.2 x 6.7 x 26.1mm, utilizing the 4N30 quartz caliber, with each being a limited edition of 500 units. On balance, owners appreciate the unique design elements of the Seiko power design project collection 1 collection 1 Limited Edition, with some specific aesthetic preferences noted.