Side by side

Sheffield GMTvsYema Skin Diver CMM.20

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

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GMT
SheffieldGMT
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372
Buy from Sheffield ↗
Buy used on eBay ↗
Buy from Yema ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
GMT40mm
Skin Diver CMM.2039.5mm
Power Reserve
GMT—
Skin Diver CMM.2040h
Water Resistance
GMT200m
Skin Diver CMM.20200m
MSRP
GMT—
Skin Diver CMM.20$2,372

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
40mm
39.5mm
Thickness
13mm
11.5mm
Lug-to-Lug
48mm
47mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Black

Movement

2 specs
Caliber
Seiko NH34
Yema CMM.20
Power Reserve
—
40h

Pricing

1 specs
MSRP
—
$2,372
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