Side by side
Seiko Prospex Sea 1968 Heritage Diver's GMTvsZRC 1904 IRIDIUM -METAL
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
IRIDIUM -METAL41.5mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT72h
IRIDIUM -METAL56h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT200m
IRIDIUM -METAL1,000m
MSRP
Prospex Sea 1968 Heritage Diver's GMT$1,500
IRIDIUM -METAL$3,790
Full specifications
Case
5 specsCategory
Diver
—
Diameter
42mm
41.5mm
Thickness
12.9mm
—
Lug-to-Lug
48.6mm
46mm
Water Resistance
200m
1000m
Crystal & Dial
2 specsAR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
None
Movement
3 specsCaliber
6R54
Sellita SW300-1
Power Reserve
72h
56h
Jewels
24
25
Pricing
1 specsMSRP
$1,500
$3,790
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