Side by side
Astor + Banks Fortitude ProvsHelgray Poseidon Diver (Automatic)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Fortitude Pro38.5mm
Poseidon Diver (Automatic)40mm
Power Reserve
Fortitude Pro40h
Poseidon Diver (Automatic)40h
Water Resistance
Fortitude Pro200m
Poseidon Diver (Automatic)300m
MSRP
Fortitude Pro$675
Poseidon Diver (Automatic)$249
Full specifications
Case
6 specsCategory
Sport
Diver
Diameter
38.5mm
40mm
Thickness
11.9mm
12mm
Lug-to-Lug
45.5mm
46mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
300m
Crystal & Dial
1 specsDial Color
Magenta
Black
Movement
1 specsCaliber
Miyota 9015
NH35 Warranty
Pricing
1 specsMSRP
$675
$249
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