Glycine Airman GMTvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely appreciate the Glycine Airman GMT's ability to track three time zones, with some finding the 42mm size appropriate for its functionality. A reviewer notes the polished GMT hand can be difficult to read and lacks lume, while one owner reported an ETA movement with a misaligned GMT hand. Another owner finds the lume pips weaker than the hands.

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.