
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.
The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic (ref. 46mm-anthracite-large-divers-automatic-jdd) is an automatic diver watch, with a 46mm 316l stainless steel (anthracite ip) case, 18mm thick, powered by the Sellita SW220-1 movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $3,250. The dial color is anthracite.