Side by side
Zelos Hammerhead (Tantalum LE)vsGrand Seiko SBGD223
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
SBGD22344.5mm
Power Reserve
Hammerhead (Tantalum LE)40h
SBGD223192h
Water Resistance
Hammerhead (Tantalum LE)300m
SBGD223100m
MSRP
Hammerhead (Tantalum LE)$1,499
SBGD223$320,000
Full specifications
Case
7 specsCategory
Diver
Chronograph
Diameter
44mm
44.5mm
Thickness
13mm
14.4mm
Lug-to-Lug
44mm
52mm
Lug Width
22mm
23mm
Material
Titanium
Platinum
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
9R01
Type
Automatic
Spring Drive
Power Reserve
40h
192h
Pricing
1 specsMSRP
$1,499
$320,000
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