Side by side
Helgray Poseidon Diver (Automatic)vsGrand Seiko SBGA211
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
The bottom line
The 40mm Poseidon Diver (Automatic) wears 1mm narrower than the 41mm SBGA211.
Check prices & track
Helgray Poseidon Diver (Automatic)
MSRP $249
Grand Seiko SBGA211
MSRP $6,900
At a glance
11 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
SBGA21141mm
Power Reserve
Poseidon Diver (Automatic)40h
SBGA21172h
Water Resistance
Poseidon Diver (Automatic)300m
SBGA211100m
MSRP
Poseidon Diver (Automatic)$249
SBGA211$6,900
Full specifications
Case
6 specsCategory
Diver
Dress
Diameter
40mm
41mm
Thickness
12mm
12.5mm
Lug-to-Lug
46mm
49mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m
Crystal & Dial
1 specsAR Coating
Inner
Yes
Movement
3 specsCaliber
NH35 Warranty
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$249
$6,900
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