Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsCWC 1980 RN Divers Automatic Re-Issue
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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.

OSAR-D (Original SAR with Date) Automatic 41mm

1980 RN Divers Automatic Re-Issue
Diameter
41mm
41mm
Lug-to-Lug
43.5mm
lowest
47mm
Thickness
13mm
12.7mm
lowest
Water Resistance
300m
300m
MSRP
$1,800
lowest
$2,458
Movement
Sellita SW220-1
ETA 2824-2
Case
4 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its high legibility, featuring large hour markers and a white dial with applied indices. A functional date magnifier is present. The watch utilizes a reliable Sellita SW200-1 automatic movement. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. On balance, reviewers highlight the Marathon OSAR-D (Original SAR with Date) Automatic 41mm's strong legibility and functional design as its primary strengths.
Owners widely praise the CWC 1980 RN Divers Automatic Re-Issue Watch for its faithful recreation of military aesthetics and historical dial markings, with many finding its 41mm size and wearability excellent. The fixed spring bars are a liked feature for some, enabling secure NATO strap wear. However, criticism is directed at the "faux patina" lume, which some find too gold, glossy, or mismatched between hands and hour markers, with the hour markers' lume described as overly shiny and convex. Some owners also flag the steep pricing and fixed bars as drawbacks for those not preferring NATO straps. Overall, owners and reviewers rate the CWC 1980 RN Divers Automatic Re-Issue Watch highly for its authentic vintage military design and comfortable wearability.
The watch's accurate movement is a notable strength. A potential weakness is its relatively high price point. Reviewers disagree on the watch's water-resistance, with one reviewer suggesting it could be improved and the other not mentioning any issues with water-resistance.
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