Side by side
Helgray Poseidon Diver (Automatic)vsShiro Kara RCF Tifa Blue
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
RCF Tifa Blue39mm
Power Reserve
Poseidon Diver (Automatic)40h
RCF Tifa Blue41h
Water Resistance
Poseidon Diver (Automatic)300m
RCF Tifa Blue100m
MSRP
Poseidon Diver (Automatic)$249
RCF Tifa Blue$448
Full specifications
Case
7 specsCategory
Diver
—
Diameter
40mm
39mm
Thickness
12.8mm
11.9mm
Lug-to-Lug
46mm
47.5mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
1 specsDial Color
Black
—
Movement
2 specsCaliber
NH35 Warranty
Seiko NH35
Power Reserve
40h
41h
Pricing
1 specsMSRP
$249
$448
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