Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsRGM Watches Model 300 Divers

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

Owners widely praise the RGM Watches Model 300 Divers for its outstanding quality, typical of RGM, and its rugged, cool appearance. Some owners note its 17mm thickness and small dial, with one comparison suggesting its quality does not match that of Omega. The watch is available with a bracelet in outstanding condition and an OEM rubber strap showing minor wear. On balance, owners rate the RGM Watches Model 300 Divers highly for its build quality and distinctive aesthetic.