CWC Arctic Radar Automatic DivervsYema Superman Tourbillon CMM.31 Limited Edition
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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.

Arctic Radar Automatic Diver

Superman Tourbillon CMM.31 Limited Edition
Diameter
41mm
43mm
Lug-to-Lug
47mm
n/a
Thickness
11.4mm
lowest
11.7mm
Water Resistance
300m
300m
MSRP
$2,031
lowest
$13,000
Movement
Sellita SW200-1
Yema CMM.31 Tourbillon
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.
Owners widely praise the CWC (Cabot Watch Company) Arctic Radar Automatic Diver Watch for its robust build, comparing its toughness to that of the Marathon GSAR, and appreciate its preferred aesthetic and smooth bezel action. One owner reports accuracy of +3 seconds per day. Some owners note fixed springbars as a potential drawback. On balance, owners rate the CWC (Cabot Watch Company) Arctic Radar Automatic Diver Watch highly for its cool factor and military connection, deeming it a very solid watch.
The Yema Superman Tourbillon CMM.31 Limited Edition is a titanium dive watch praised for its manufacture tourbillon and remarkable price point around €12,000. Owners describe it as an "incredible piece" and a "crazy watch" with impressive specifications, appreciating the "unnecessary" complication. While the 43mm case size is noted as large, its 13.8mm thickness and titanium construction contribute to comfort, though the bracelet clasp's extension system is considered somewhat crude. On balance, owners and reviewers rate the Yema Superman Tourbillon CMM.31 Limited Edition highly for offering a tourbillon complication at a compelling price point, despite some reservations about case size and bracelet finishing.
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