Side by side
Helgray Poseidon Diver (Automatic)vsGrand Seiko SBGD201
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
SBGD20143mm
Power Reserve
Poseidon Diver (Automatic)40h
SBGD201192h
Water Resistance
Poseidon Diver (Automatic)300m
SBGD201100m
MSRP
Poseidon Diver (Automatic)$249
SBGD201—
Full specifications
Case
7 specsCategory
Diver
Dress
Diameter
40mm
43mm
Thickness
12mm
13.2mm
Lug-to-Lug
46mm
51.8mm
Lug Width
20mm
22mm
Material
Stainless Steel
Platinum
Water Resistance
300m
100m
Crystal & Dial
1 specsAR Coating
Inner
Yes
Movement
3 specsCaliber
NH35 Warranty
9R01
Type
Automatic
Spring Drive
Power Reserve
40h
192h
Pricing
1 specsMSRP
$249
—
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