Side by side
Sheffield 1AvsYema Superman Worldtime GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
1A40mm
Superman Worldtime GMT39mm
Power Reserve
1A—
Superman Worldtime GMT40h
Water Resistance
1A200m
Superman Worldtime GMT300m
MSRP
1A$223
Superman Worldtime GMT$1,549
Full specifications
Case
5 specsCategory
Diver
GMT
Diameter
40mm
39mm
Thickness
12.8mm
—
Lug-to-Lug
46mm
—
Water Resistance
200m
300m
Crystal & Dial
2 specsDial Color
White/Blue
39mm Automatic
Lume
Swiss blue lume
None
Movement
2 specsCaliber
Seiko NH35A
—
Power Reserve
—
40h
Pricing
1 specsMSRP
$223
$1,549
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