Side by side

Christopher Ward C1 Jump Hour Mk VvsYema Skin Diver Slim CMM.20

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

C1 Jump Hour Mk V
Christopher WardC1 Jump Hour Mk V
MSRP $3,095
Skin Diver Slim CMM.20
YemaSkin Diver Slim CMM.20
MSRP $2,117

At a glance

13 of 29 specs differ
Diameter
C1 Jump Hour Mk V40mm
Skin Diver Slim CMM.2047mm
Power Reserve
C1 Jump Hour Mk V41h
Skin Diver Slim CMM.2040h
Water Resistance
C1 Jump Hour Mk V30m
Skin Diver Slim CMM.20200m
MSRP
C1 Jump Hour Mk V$3,095
Skin Diver Slim CMM.20$2,117

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
47mm
Thickness
14mm
10mm
Lug-to-Lug
47.3mm
47mm
Water Resistance
30m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Noon
Steel
Lume
SLN C1 X1 BL
None

Movement

4 specs
Caliber
SW200-1
Yema CMM.20
Beat Rate
4 vph
28,800 vph
Power Reserve
41h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,095
$2,117

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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 Jump Hour Mk V

The Christopher Ward C1 Jump Hour Mk V is praised for its proprietary JJ01 jumping hour complication and multi-level dial design featuring a floating sapphire dial with a lumed jump hour aperture. Reviewers note the 39mm stainless steel case's mix of brushed and polished finishes, with a polished bezel and brushed midcase. The dial's radially grooved center and sapphire minute track with a lumed underside enhance legibility, and the Super-LumiNova execution is described as an eye-catcher. The watch is powered by the JJ01 module atop a Sellita SW200-1 movement, offering a 38-hour power reserve. Accuracy is rated at approximately ±20 seconds per day. Some owners express concerns about the watch's 14mm thickness. Overall, owners and reviewers appreciate the unique dial execution and complication at its price point.

Yema Skin Diver Slim CMM.20

Owners and reviewers widely praise the Yema Skin Diver Slim CMM.20 for its balanced 39mm case, vintage aesthetic, and unique champagne dial. The proprietary CMM.20 micro-rotor movement is a notable feature, though some owners report potential QC issues including erratic timegrapher readings and second-hand stutter. The lume is described as subdued, and while some find the "dragon scale" bracelet beautiful, others consider it generic. The price point is a hurdle for some, and the stamped clasp quality is considered subpar by one reviewer, with a gap noted by an owner. The lack of hacking seconds is flagged as a drawback at its price. Overall, owners and reviewers rate the Yema Skin Diver Slim CMM.20 highly for its vintage charm and balanced wearability.

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