Side by side
Sheffield 1AvsSeiko Prospex Sea 1968 Heritage Diver's 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
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
1A—
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
1A200m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
1A$223
Prospex Sea 1968 Heritage Diver's GMT$1,500
Full specifications
Case
3 specsDiameter
40mm
42mm
Thickness
12.8mm
12.9mm
Lug-to-Lug
46mm
48.6mm
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White/Blue
Black
Lume
Swiss blue lume
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35A
6R54
Power Reserve
—
72h
Jewels
25
24
Pricing
1 specsMSRP
$223
$1,500
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