Scurfa Diver One D1-500vsYema Superman Slim CMM.20
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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.
Diver One D1-500
Superman Slim CMM.20
Diameter
40mm
39mm
Lug-to-Lug
47.7mm
n/a
Thickness
14.4mm
9.9mm
lowest
Water Resistance
500m
highest
300m
MSRP
$249
lowest
$2,372
Movement
Ronda 715SM
Yema CMM.20
Case
5 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Scurfa Diver One D1-500 for its legible dial, robust 40mm case ideal for everyday wear, and exceptional lume. Reviewers highlight its precise 120-click bezel, scratch-resistant sapphire crystal, and the practical, durable Ronda 715SM quartz movement. One owner notes the aluminum bezel offers a welcome color variation. Some owners report the watch feels higher quality than its price point suggests, with one owner disliking the logo. Overall, owners and reviewers rate the Scurfa Diver One D1-500 highly for its tool-like legibility and build quality at the price.
Owners and reviewers praise the Yema Superman Slim CMM.20 for its appealing retro design, balanced 39mm case, and in-house CMM.20 micro-rotor movement, with some finding the fish scale bracelet attractive. Concerns exist regarding its $2500/€2,490 MSRP, with some owners questioning its value and noting the potential for QC issues or a "jittery" seconds hand attributed to the new movement. The bracelet's articulation and stamped clasp draw criticism, though some owners report it improves with wear. Overall, owners and reviewers appreciate the Yema Superman Slim CMM.20's vintage styling and unique micro-rotor movement, but its value proposition and some finishing details are points of contention.
The upgraded CMM.20 micro-rotor movement is a significant enhancement. Reviewers noted the slim profile and redesigned case. One reviewer indicated a significant flaw was discussed, but the nature of this imperfection was not specified.
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