Side by side
Helgray Poseidon Diver (Automatic)vsSheffield Deep Gray 300
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
8 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
Deep Gray 30042mm
Power Reserve
Poseidon Diver (Automatic)40h
Deep Gray 30040h
Water Resistance
Poseidon Diver (Automatic)300m
Deep Gray 300300m
MSRP
Poseidon Diver (Automatic)$249
Deep Gray 300$258
Full specifications
Case
5 specsCategory
Diver
—
Diameter
40mm
42mm
Thickness
12mm
13.8mm
Lug-to-Lug
46mm
52mm
Lug Width
20mm
22mm
Crystal & Dial
1 specsDial Color
Black
—
Movement
1 specsCaliber
NH35 Warranty
Seiko NH35
Pricing
1 specsMSRP
$249
—
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