Side by side
Sheffield 1AvsYema Superman Slim CMM.20
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
1A40mm
Superman Slim CMM.2039mm
Power Reserve
1A—
Superman Slim CMM.2040h
Water Resistance
1A200m
Superman Slim CMM.20300m
MSRP
1A$223
Superman Slim CMM.20$2,372
Full specifications
Case
5 specsDiameter
40mm
39mm
Thickness
12.8mm
9.95mm
Lug-to-Lug
46mm
—
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
White/Blue
Black
Lume
Swiss blue lume
None
Movement
2 specsCaliber
Seiko NH35A
Yema CMM.20
Power Reserve
—
40h
Pricing
1 specsMSRP
$223
$2,372
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