Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsCitizen Promaster Dive E365

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

The Citizen Promaster Dive E365 is lauded for its wearable 46mm lugless case, a striking red gradient dial, and the Cal.E365 Eco-Drive movement with a 365-day power reserve. Owners report comfortable wearability despite its dimensions and weight, with accuracy noted as within one second of an atomic clock. Some find the red dial to appear more brownish than red, and opinions are split on the lume, with one owner finding it underwhelming compared to other Citizen divers while another states their 300m Citizen divers function as "nightlights." The watch's 16.3mm thickness contributes to an industrial feel, and the accordion-style rubber strap may be visually divisive. On balance, owners and reviewers rate the Citizen Promaster Dive E365 highly for its impressive power reserve and comfortable wearability in a robust dive watch package.