Side by side

Christopher Ward C63 ColchestervsYema Skin Diver CMM.20

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

C63 Colchester
Christopher WardC63 Colchester
MSRP $1,615
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

16 of 29 specs differ
Diameter
C63 Colchester47.5mm
Skin Diver CMM.2039.5mm
Power Reserve
C63 Colchester38h
Skin Diver CMM.2040h
Water Resistance
C63 Colchester150m
Skin Diver CMM.20200m
MSRP
C63 Colchester$1,615
Skin Diver CMM.20$2,372

Full specifications

Case

8 specs
Category
Diver
Diameter
47.5mm
39.5mm
Thickness
12.6mm
11.5mm
Lug-to-Lug
47.5mm
47mm
Lug Width
22mm
20mm
Material
Injected carbon
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
150m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Lume
SLN X1 BL C1
None

Movement

5 specs
Caliber
SW200
Yema CMM.20
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
40h
Jewels
26
25
Complications
Moonphase, Day-date, Date
None

Pricing

1 specs
MSRP
$1,615
$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 C63 Colchester

The Christopher Ward C63 Colchester is praised for its extremely lightweight, 41mm forged carbon case and dial, weighing only 38 grams, and its COSC-certified Sellita SW200 movement. Some owners report the lume lasts all night, while others note the red seconds hand can be difficult to see in low light. The recessed crown is a point of discussion, with one owner finding it difficult to manipulate due to its thinness and another suggesting it may be gimmicky. The watch is offered at $925. Overall, owners appreciate the unique materials and lightweight design of the Christopher Ward C63 Colchester, though some express concerns about the crown functionality and 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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