Side by side
Helgray Poseidon Diver (Automatic)vsSeiko Alpinist
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Poseidon Diver (Automatic)40mm
Alpinist39.5mm
Power Reserve
Poseidon Diver (Automatic)40h
Alpinist70h
Water Resistance
Poseidon Diver (Automatic)300m
Alpinist200m
MSRP
Poseidon Diver (Automatic)$249
Alpinist$750
Full specifications
Case
5 specsCategory
Diver
Field
Diameter
40mm
39.5mm
Thickness
12mm
13.2mm
Lug-to-Lug
46mm
46.4mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
NH35 Warranty
6R35
Power Reserve
40h
70h
Jewels
25
24
Pricing
1 specsMSRP
$249
$750
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