Sheffield 1A 40mmvsShiro Kara Daibāzu: Kuro SUB
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

1A 40mm

Daibāzu: Kuro SUB
Diameter
40mm
40mm
Lug-to-Lug
48mm
48mm
Thickness
13mm
lowest
13.2mm
Water Resistance
200m
highest
100m
Power Reserve
n/a
41h
MSRP
$228
lowest
$518
Movement
Seiko NH35
Seiko NH35
Case
3 specsThickness
13mm
13.2mm
Material
Stainless Steel
904L Stainless Steel
Water Resistance
200m
100m
Movement
1 specsPower Reserve
0h
41h
Pricing
1 specsMSRP
$228
$518
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