Side by side

CWC Automatic Divers Watch Mk.2 BlackvsYema Skin Diver CMM.20

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Automatic Divers Watch Mk.2 Black
CWCAutomatic Divers Watch Mk.2 Black
MSRP $1,249
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

9 of 29 specs differ
Diameter
Automatic Divers Watch Mk.2 Black41mm
Skin Diver CMM.2039.5mm
Power Reserve
Automatic Divers Watch Mk.2 Black40h
Skin Diver CMM.2040h
Water Resistance
Automatic Divers Watch Mk.2 Black300m
Skin Diver CMM.20200m
MSRP
Automatic Divers Watch Mk.2 Black$1,249
Skin Diver CMM.20$2,372

Full specifications

Case

4 specs
Diameter
41mm
39.5mm
Thickness
12mm
11.5mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
CWC Automatic Divers Watch Mk.2 Black (SF300 AS120)
Black
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Sellita SW200-1
Yema CMM.20

Pricing

1 specs
MSRP
$1,249
$2,372

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What people say

Owners + reviewers, side by side

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

CWC Automatic Divers Watch Mk.2 Black

Owners widely praise the CWC Automatic Divers Watch Mk.2 Black for its brushed chapter ring, precise 120-click bezel, clear sapphire crystal, excellent case finishing, and significantly improved lume. The watch is considered a terrific value with solid construction. Some owners express a preference for a matte finish for a more tool-like appearance, though polished versions offer a dressier look and easier scratch removal. On balance, owners rate the CWC Automatic Divers Watch Mk.2 Black highly for its tool-like features and excellent value.

From video reviewers

The bezel action is smooth. The price has increased due to popularity.

Yema Skin Diver CMM.20

Owners and reviewers widely praise the Yema Skin Diver CMM.20 for its vintage aesthetic, 39mm-39.5mm case size, and the in-house CMM.20 micro-rotor movement. The watch features a textured cream dial, sharp applied indices, and a satisfyingly over-engineered push-to-turn bi-directional bezel. The fully brushed bracelet with toolless micro-adjust clasp is highlighted as a significant improvement, though some note its extended lug-to-lug may challenge smaller wrists. Accuracy figures range from -3/+7 seconds per day to erratic results between 0 and -10 seconds per day, with a 70-hour power reserve. Some owners express concerns about the brand's QC reputation and the micro-rotor movement's performance, while one reviewer noted questionable finishing on a prototype's hour hand and a rattly clasp. Overall, owners and reviewers rate the Yema Skin Diver CMM.20 highly for its vintage styling and improved bracelet at the price.

From video reviewers

The sapphire bezel insert and in-house CMM.20 movement are noted strengths. Reviewers questioned the value proposition compared to other Yema models.

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