Side by side

Christopher Ward Twelve X Black ShadowvsYema Skin Diver CMM.20

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

Twelve X Black Shadow
Christopher WardTwelve X Black Shadow
MSRP $5,715
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

16 of 29 specs differ
Diameter
Twelve X Black Shadow44.5mm
Skin Diver CMM.2039.5mm
Power Reserve
Twelve X Black Shadow120h
Skin Diver CMM.2040h
Water Resistance
Twelve X Black Shadow100m
Skin Diver CMM.20200m
MSRP
Twelve X Black Shadow$5,715
Skin Diver CMM.20$2,372

Full specifications

Case

8 specs
Category
Skeleton
Diver
Diameter
44.5mm
39.5mm
Thickness
12.3mm
11.5mm
Lug-to-Lug
44.5mm
47mm
Lug Width
25mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
100m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
CW-001
Yema CMM.20
Beat Rate
4 vph
28,800 vph
Power Reserve
120h
40h
Jewels
31
25
Complications
Moonphase
None

Pricing

1 specs
MSRP
$5,715
$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.

Christopher Ward Twelve X Black Shadow

Owners and reviewers widely praise the Christopher Ward Twelve X Black Shadow for its exceptional titanium finishing, dynamic case design, and skeletonized COSC-certified SH21 movement with a 120-hour power reserve. Some owners note sharp edges on bracelet links and unfinished interior clasp surfaces, while reviewers mention legibility issues common to skeletonized watches and a thickness of 12.3mm making it feel chunkier than other models. On balance, owners and reviewers rate the Christopher Ward Twelve X Black Shadow highly for its impressive in-house movement and titanium finishing at its price point.

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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