Side by side

Zelos Hammerhead (Tantalum LE)vsGrand Seiko SLGC001

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499
SLGC001
Grand SeikoSLGC001
MSRP $14,700

At a glance

12 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
SLGC00143.2mm
Power Reserve
Hammerhead (Tantalum LE)40h
SLGC00172h
Water Resistance
Hammerhead (Tantalum LE)300m
SLGC001100m
MSRP
Hammerhead (Tantalum LE)$1,499
SLGC001$14,700

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
44mm
43.2mm
Thickness
13mm
15.3mm
Lug-to-Lug
44mm
51.5mm
Lug Width
22mm
23mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Tantalum LE
Black

Movement

2 specs
Caliber
Seiko NH35
9SC5
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,499
$14,700

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

Grand Seiko SLGC001

The Grand Seiko SLGC001 is praised for its high-tech titanium construction and 72-hour power reserve. Reviewers note the new 9SC5 movement, a 5Hz caliber with a +5 to -3 seconds per day accuracy rating. The watch features a balanced tri-compax dial and 100m water resistance. However, its 43.2mm width and 15.3mm thickness are described as bulky, and some find its styling less distinctive than previous models. On balance, reviewers highlight the technical achievement of Grand Seiko's first mechanical chronograph, despite its substantial dimensions.

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