CWC 1980 RN Divers Automatic Re-IssuevsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

1980 RN Divers Automatic Re-Issue

JDD (Jumbo Day/Date) Anthracite Diver's Automatic
Diameter
45mm
46mm
Lug-to-Lug
47mm
lowest
55mm
Thickness
12.7mm
lowest
18mm
Water Resistance
300m
300m
MSRP
$3,747
$3,250
lowest
Movement
ETA 2824-2
Sellita SW220-1
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the CWC (Cabot Watch Company) 1980 RN Divers Automatic Re-Issue Watch for its faithful homage to the original, with specific call-outs for the dial markings, vintage logo, and luminous acrylic bezel. Reviewers and owners alike appreciate the Monnin-style case, which is noted for wearing beautifully, and the matte black dial with legible hands. Accuracy is reported as excellent, with one owner noting under +2 seconds per day. The fixed lugs are seen by some as a drawback, though others consider them a positive feature for a tool watch. The "faux patina" lume receives mixed reactions, with some finding it too gold and glossy, while others favor it. The polished case finish is also noted as unusual for a military watch. Some owners question the value proposition at its price point, citing the ETA movement, though others see it as a strong alternative to more expensive options.
The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic is widely praised as a tough, underrated tool watch with excellent legibility due to its tritium lume. Owners appreciate its robust build and lifestyle appeal, though its 46mm size is a common point of criticism, with some finding it heavy and top-heavy. One reviewer noted the white day/date discs clash with the anthracite dial, and an owner observed the watch running about 10 seconds fast over three days. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust build and excellent legibility as a tool watch, despite its substantial size.
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