Side by side
Helgray Poseidon Diver (Automatic)vsGruppo Gamma Field III GMT Date
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
Field III GMT Date40mm
Power Reserve
Poseidon Diver (Automatic)40h
Field III GMT Date41h
Water Resistance
Poseidon Diver (Automatic)300m
Field III GMT Date200m
MSRP
Poseidon Diver (Automatic)$249
Field III GMT Date$459
Full specifications
Case
5 specsCategory
Diver
GMT
Thickness
12mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
None
Super-LumiNova
Movement
3 specsCaliber
NH35 Warranty
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT, Date
Pricing
1 specsMSRP
$249
$459
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