Side by side
Hitori Somei YoshinovsHelgray Poseidon Diver (Automatic)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Somei Yoshino39.6mm
Poseidon Diver (Automatic)40mm
Power Reserve
Somei Yoshino41h
Poseidon Diver (Automatic)40h
Water Resistance
Somei Yoshino100m
Poseidon Diver (Automatic)300m
MSRP
Somei Yoshino$569
Poseidon Diver (Automatic)$249
Full specifications
Case
6 specsCategory
—
Diver
Diameter
39.6mm
40mm
Thickness
10.55mm
12mm
Lug-to-Lug
46.8mm
46mm
Lug Width
—
20mm
Water Resistance
100m
300m
Crystal & Dial
1 specsDial Color
White
Black
Movement
2 specsCaliber
Seiko NH35
NH35 Warranty
Power Reserve
41h
40h
Pricing
1 specsMSRP
$569
$249
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