Side by side
Helgray Poseidon Diver (Automatic)vsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Poseidon Diver (Automatic)40h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Poseidon Diver (Automatic)300m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Poseidon Diver (Automatic)$249
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700
Full specifications
Case
3 specsDiameter
40mm
42mm
Thickness
12mm
13.3mm
Lug-to-Lug
46mm
48.6mm
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH35 Warranty
6R54
Power Reserve
40h
72h
Jewels
25
24
Pricing
1 specsMSRP
$249
$1,700
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