Side by side

Christopher Ward C65 Aquitaine Bronze COSCvsYema Skin Diver CMM.20

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

C65 Aquitaine Bronze COSC
Christopher WardC65 Aquitaine Bronze COSC
MSRP $1,695
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

16 of 29 specs differ
Diameter
C65 Aquitaine Bronze COSC46.68mm
Skin Diver CMM.2039.5mm
Power Reserve
C65 Aquitaine Bronze COSC38h
Skin Diver CMM.2040h
Water Resistance
C65 Aquitaine Bronze COSC200m
Skin Diver CMM.20200m
MSRP
C65 Aquitaine Bronze COSC$1,695
Skin Diver CMM.20$2,372

Full specifications

Case

7 specs
Diameter
46.68mm
39.5mm
Thickness
12.45mm
11.5mm
Lug-to-Lug
46.68mm
47mm
Lug Width
22mm
20mm
Material
Bronze
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Caseback
Display
Solid

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Black
Lume
SLN X1 BL Old Radium
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
$1,695
$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 C65 Aquitaine Bronze COSC

Owners widely praise the Christopher Ward C65 Aquitaine Bronze COSC for its comfortable wearability, durable case and bezel, and smooth winding action, with one owner finding its case superior to a Tudor's. However, accuracy is a significant concern, with one owner reporting +17 seconds per day. The rubber strap is also noted as lacking refinement, and some suggest design tweaks for greater brand uniqueness. Overall, owners rate the Christopher Ward C65 Aquitaine Bronze COSC highly for its wearability and case finishing, despite accuracy concerns with the Sellita SW330-2 movement.

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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