Side by side

Bell & Ross BR-05 DiamondvsYema Skin Diver CMM.20

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

BR-05 Diamond
Bell & RossBR-05 Diamond
MSRP $24,829
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

20 of 29 specs differ
Diameter
BR-05 Diamond40mm
Skin Diver CMM.2039.5mm
Power Reserve
BR-05 Diamond
Skin Diver CMM.2040h
Water Resistance
BR-05 Diamond100m
Skin Diver CMM.20200m
MSRP
BR-05 Diamond$24,829
Skin Diver CMM.20$2,372

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
39.5mm
Thickness
11.5mm
Lug-to-Lug
47mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Underside
Inner
Indices
Applied indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
BR-CAL.321
Yema CMM.20
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
Complications
Hours/Minutes, Seconds, Date
None

Pricing

1 specs
MSRP
$24,829
$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.

Bell & Ross BR-05 Diamond

Owners widely praise the Bell & Ross BR-05 Diamond's design and build quality, noting its comfortable wearability and a less derivative appearance in person. The contrast between brushed and polished finishes, along with the blue sunray dial, contributes to its appeal as a versatile integrated steel sports watch. Some owners, however, find the crown to be a bit fussy and criticize the high price relative to the SW300-1 movement. On balance, owners rate the Bell & Ross BR-05 Diamond highly for its striking design and versatile wearability.

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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