Side by side

Zelos Hammerhead (Tantalum LE)vsGrand Seiko SLGB003

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
SLGB003
Grand SeikoSLGB003
MSRP $11,400

At a glance

13 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
SLGB00337mm
Power Reserve
Hammerhead (Tantalum LE)40h
SLGB00372h
Water Resistance
Hammerhead (Tantalum LE)300m
SLGB003100m
MSRP
Hammerhead (Tantalum LE)$1,499
SLGB003$11,400

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
44mm
37mm
Thickness
13mm
11.4mm
Lug-to-Lug
44mm
44.3mm
Lug Width
22mm
20mm
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko NH35
9RB2
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,499
$11,400

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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 SLGB003

Grand Seiko SLGB003 owners widely praise its lightness and comfort, with a dial that offers a shifting character in different lighting conditions. Reviewers note its compact case size enhances wearability and versatility across wrist sizes. However, one owner found the dial underwhelming, and another reported a date disc issue with lower numbers not changing correctly. Some question the value proposition at around $10,000, citing the bracelet and dial as potential drawbacks, while others highlight the movement and smaller dimensions as significant positives. On balance, owners rate the Grand Seiko SLGB003 highly for its movement and compact dimensions, despite some reservations about the dial and bracelet.

From video reviewers

The watch's exceptional accuracy is a notable strength, with both reviewers highlighting its precise timekeeping. A weakness is the relatively high price point compared to other Grand Seiko models. Reviewers disagree on the ideal case size, with one reviewer noting it's relatively small at 37mm, while the other doesn't mention case size as a concern.

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