Side by side

Christopher Ward C1 MoonglowvsYema Skin Diver CMM.20

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

C1 Moonglow
Christopher WardC1 Moonglow
MSRP $3,050
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

14 of 29 specs differ
Diameter
C1 Moonglow40mm
Skin Diver CMM.2039.5mm
Power Reserve
C1 Moonglow38h
Skin Diver CMM.2040h
Water Resistance
C1 Moonglow30m
Skin Diver CMM.20200m
MSRP
C1 Moonglow$3,050
Skin Diver CMM.20$2,372

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
39.5mm
Thickness
12.9mm
11.5mm
Lug-to-Lug
47.9mm
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

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

Movement

5 specs
Caliber
SW220-1
Yema CMM.20
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
40h
Jewels
26
25
Complications
Moonphase, Day-date
None

Pricing

1 specs
MSRP
$3,050
$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 C1 Moonglow

The Christopher Ward C1 Moonglow is widely praised for its comfort, wearability at 40.5mm, and impressive lume, with owners calling it gorgeous, unique, and the coolest moonphase for the money. The moonphase complication is noted as constantly rotating, and one owner reports it accurate to within 1 day every 128 years. Some criticism exists regarding the dual moon phase display, where the inactive moon is visible through a translucent cover, and the lume on the date ring is less bright and fades faster than other luminous elements. One owner specifically loves the opaque blue moonphase dial of the LE Celestial Blue variant. Overall, owners and reviewers find the Christopher Ward C1 Moonglow a visually engaging and comfortable watch, particularly for its price point, with its unique dial design and strong lume being significant draws.

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.

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