Scurfa Diver One D1-500vsYema Superman Slim CMM.20

Diver One D1-500
ScurfaDiver One D1-500

Ref. diver-one-d1-500-blue-10-year-anniversary-edition·MSRP $268

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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.

Scurfa Diver One D1-500 at true scale

Diver One D1-500

Yema Superman Slim CMM.20 at true scale

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

$268

lowest

$2,372

Movement

Ronda 715SM

Yema CMM.20

Case

5 specs
Diameter
40mm
39mm
Thickness
14.4mm
9.95mm
Lug-to-Lug
47.7mm
n/a
Material
Stainless Steel
316L Stainless Steel
Water Resistance
500m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
n/a
Black

Movement

2 specs
Caliber
Ronda 715SM
Yema CMM.20
Type
Quartz
Mechanical

Pricing

1 specs
MSRP
$268
$2,372
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Scurfa Diver One D1-500

Owners widely praise the Scurfa Diver One D1-500 for its robust 40mm case, described as ideal for everyday wear and reminiscent of an older Submariner, and its excellent legibility. Reviewers and owners alike highlight its strong lume, with one owner calling it the best they have seen, and note the precise 120-click bezel. The watch's 500-meter water resistance is deemed suitable for actual diving. Some owners appreciate the aluminum bezel's color as a change from black, and one owner finds the titanium case exceptionally light and warm. Overall, owners rate the Scurfa Diver One D1-500 highly for its tool diver design and perceived quality exceeding its price point.

Yema Superman Slim CMM.20

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.

From video reviewers

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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