Side by side
Grand Seiko STGF387vsZelos Hammerhead V3 300m Titanium
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
STGF38726mm
Hammerhead V3 300m Titanium44mm
Power Reserve
STGF38740h
Hammerhead V3 300m Titanium40h
Water Resistance
STGF387100m
Hammerhead V3 300m Titanium300m
MSRP
STGF387$4,200
Hammerhead V3 300m Titanium$559
Full specifications
Case
7 specsCategory
Dress
Diver
Diameter
26mm
44mm
Thickness
8.1mm
13mm
Lug-to-Lug
32.9mm
44mm
Lug Width
13mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Ti - Mosaic MOP
Movement
2 specsCaliber
4J51
Seiko NH35
Type
Quartz
Automatic
Pricing
1 specsMSRP
$4,200
$559
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