Side by side
Zelos Hammerhead (Tantalum LE)vsGrand Seiko SBGA384
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Hammerhead (Tantalum LE)44mm
SBGA38440mm
Power Reserve
Hammerhead (Tantalum LE)40h
SBGA38472h
Water Resistance
Hammerhead (Tantalum LE)300m
SBGA384100m
MSRP
Hammerhead (Tantalum LE)$1,499
SBGA384$29,500
Full specifications
Case
7 specsCategory
Diver
Dress
Diameter
44mm
40mm
Thickness
13mm
12.5mm
Lug-to-Lug
44mm
46.2mm
Lug Width
22mm
19mm
Material
Titanium
Gold
Water Resistance
300m
100m
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Tantalum LE
Black
Movement
3 specsCaliber
Seiko NH35
9R15
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$1,499
$29,500
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