Citizen Promaster DivervsMarathon Steel Navigator SSNAV Quartz

The Citizen Promaster Diver is praised for its handsome dial made from recycled materials and lightweight comfort, with one owner noting its Ecodrive movement achieved +1 second in 7 days. Another owner highlights the "Kermit" NY0071–81E's Super Titanium case and Japanese 8203 calibre movement, which has an accuracy of +20/-40 seconds per day. Criticisms include potential difficulty maintaining charge in a large collection and a slightly misaligned bezel and chapter ring, with a preference for sapphire crystal and ceramic bezel over mineral glass and aluminum. One owner found their 1990 Promaster Aqualand's quartz movement required repairs twice. Overall, owners value the Citizen Promaster Diver for its unique dial and comfortable wear, though movement accuracy and material choices are points of varied observation.

The Marathon Steel Navigator SSNAV Quartz is widely praised for its highly accurate Swiss Made ETA F06.412 PreciDrive movement, with stated accuracy of ±10 seconds per year, and its constant low-light visibility from self-illuminating tritium tubes. Owners find the watch comfortable and impressive, noting its 41mm sandblasted steel case with an asymmetrical design, bi-directional GMT bezel with excellent action, sapphire crystal, and 100m water resistance with a screw-down crown. On balance, owners and reviewers rate the Marathon Steel Navigator SSNAV Quartz highly for its robust tool watch design and exceptional accuracy at its price point.