Side by side
Seiko Prospex Sea 1968 Heritage Diver's GMTvsTSAO Baltimore OLD BAY Timepiece
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Prospex Sea 1968 Heritage Diver's GMT42mm
OLD BAY Timepiece40mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT72h
OLD BAY Timepiece41h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT200m
OLD BAY Timepiece200m
MSRP
Prospex Sea 1968 Heritage Diver's GMT$1,500
OLD BAY Timepiece$550
Full specifications
Case
4 specsCategory
Diver
—
Diameter
42mm
40mm
Thickness
12.9mm
13.2mm
Lug-to-Lug
48.6mm
46mm
Crystal & Dial
3 specsAR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
—
Lume
LumiBrite on hands, index(es) and bezel
None
Movement
3 specsCaliber
6R54
Seiko NH38
Power Reserve
72h
41h
Jewels
24
25
Pricing
1 specsMSRP
$1,500
$550
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