Side by side

Spinnaker Bradner GMTvsYema Skin Diver Slim CMM.20

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Skin Diver Slim CMM.20
YemaSkin Diver Slim CMM.20
MSRP $2,117

At a glance

10 of 29 specs differ
Diameter
Bradner GMT42mm
Skin Diver Slim CMM.2047mm
Power Reserve
Bradner GMT40h
Skin Diver Slim CMM.2040h
Water Resistance
Bradner GMT180m
Skin Diver Slim CMM.20200m
MSRP
Bradner GMT$299
Skin Diver Slim CMM.20$2,117

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
42mm
47mm
Thickness
15mm
10mm
Lug-to-Lug
50mm
47mm
Lug Width
22mm
20mm
Water Resistance
180m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Brown
Steel

Movement

1 specs
Caliber
Seiko NH34A
Yema CMM.20

Pricing

1 specs
MSRP
$299
$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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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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