CWC RN81 Diver AutomaticvsFortis Marinemaster M-44
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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.
RN81 Diver Automatic
Marinemaster M-44
Diameter
45mm
44mm
Lug-to-Lug
47mm
n/a
Thickness
12.7mm
lowest
14mm
Water Resistance
300m
300m
Power Reserve
n/a
38h
MSRP
$1,792
lowest
$5,120
Movement
Sellita SW200-1
Sellita SW220-1
Case
4 specsCrystal & Dial
1 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the CWC RN81 Diver Automatic Watch for its vintage-inspired aesthetic, milspec bezel, and lume details, with many finding it incredibly legible even in the dark. The watch is considered great value for its price, featuring top-notch crown, bezel, and case finishing, and has proven durable, surviving accidental drops. Some owners find the case a bit thick and large, and one owner prefers the PVD finish over the polished case. Overall, owners rate the CWC RN81 Diver Automatic Watch highly for its legibility and robust build at its price point.
Owners praise the Fortis Marinemaster M-44 for its gorgeous appearance, significant wrist presence, and "crazy lume." Reviewers highlight its excellent build quality, COSC-certified movement accuracy of 0 seconds per day, and surprisingly comfortable 44mm case despite its 14.4mm thickness. One reviewer noted the 21mm lug width as a minor drawback, wishing it were 22mm. Overall, owners and reviewers rate the Fortis Marinemaster M-44 highly for its exceptional build quality and COSC-certified accuracy.
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