Side by side
Alexander James Watches A4 Prelude 37 GMT Light BluevsYema Skin Diver CMM.20
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
A4 Prelude 37 GMT Light Blue37.4mm
Skin Diver CMM.2039.5mm
Power Reserve
A4 Prelude 37 GMT Light Blue40h
Skin Diver CMM.2040h
Water Resistance
A4 Prelude 37 GMT Light Blue200m
Skin Diver CMM.20200m
MSRP
A4 Prelude 37 GMT Light Blue$325
Skin Diver CMM.20$2,372
Full specifications
Case
5 specsCategory
—
Diver
Diameter
37.4mm
39.5mm
Thickness
12.1mm
11.5mm
Lug-to-Lug
46mm
47mm
Material
Stainless Steel
316L Stainless Steel
Crystal & Dial
2 specsCrystal
Sapphire
Domed Sapphire
Dial Color
—
Black
Movement
1 specsCaliber
Seiko NH34
Yema CMM.20
Pricing
1 specsMSRP
$325
$2,372
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