Side by side
Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsYema Skin Diver CMM.20
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date40mm
Skin Diver CMM.2039.5mm
Power Reserve
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date—
Skin Diver CMM.2040h
Water Resistance
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date200m
Skin Diver CMM.20200m
MSRP
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date$238
Skin Diver CMM.20$2,372
Full specifications
Case
4 specsDiameter
40mm
39.5mm
Thickness
12.8mm
11.5mm
Lug-to-Lug
46mm
47mm
Material
Stainless Steel
316L Stainless Steel
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
$238
$2,372
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