Side by side
Helgray Poseidon Diver (Automatic)vsSeiko Monster
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
Monster42.4mm
Power Reserve
Poseidon Diver (Automatic)40h
Monster41h
Water Resistance
Poseidon Diver (Automatic)300m
Monster200m
MSRP
Poseidon Diver (Automatic)$249
Monster$550
Full specifications
Case
4 specsDiameter
40mm
42.4mm
Thickness
12mm
13.4mm
Lug-to-Lug
46mm
49.4mm
Water Resistance
300m
200m
Crystal & Dial
2 specsCrystal
Sapphire
Hardlex
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH35 Warranty
4R36
Power Reserve
40h
41h
Jewels
25
24
Pricing
1 specsMSRP
$249
$550
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