Side by side

Grand Seiko SLGW004vsZelos Hammerhead V3 300m Bronze

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

SLGW004
Grand SeikoSLGW004
MSRP $30,000
Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449

At a glance

14 of 29 specs differ
Diameter
SLGW00438.8mm
Hammerhead V3 300m Bronze44mm
Power Reserve
SLGW00480h
Hammerhead V3 300m Bronze40h
Water Resistance
SLGW00430m
Hammerhead V3 300m Bronze300m
MSRP
SLGW004$30,000
Hammerhead V3 300m Bronze$449

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
38.8mm
44mm
Thickness
10.4mm
13mm
Lug-to-Lug
43.7mm
44mm
Lug Width
19mm
22mm
Material
Gold
Titanium
Water Resistance
30m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Bronze - Frost

Movement

3 specs
Caliber
9SA4
Seiko NH35
Type
Manual
Automatic
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$30,000
$449

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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.

Grand Seiko SLGW004

The Grand Seiko SLGW004 is praised for its elegant, faithful reissue design and impressive technical execution, featuring a new 9SA4 hi-beat manual-winding movement with an 80-hour power reserve and accuracy of -3/+5 seconds per day. Reviewers highlight the sharp case facets, double-signed dial, and beautifully decorated movement visible through the display caseback, along with an enjoyable winding experience. One reviewer noted a desire for better water resistance and expressed a dislike for the etched sapphire case back. Overall, reviewers rate the Grand Seiko SLGW004 highly for its elegant design and technically impressive movement.

Zelos Hammerhead V3 300m Bronze

Owners widely praise the Zelos Hammerhead V3 300m Bronze for its distinctive 70s-inspired design, slim 13.5mm case, and improved lume, offering a sophisticated timepiece at an accessible price point starting at $349. The unique dial is noted for evoking an otherworldly feeling, and the comfortable bracelet features on-the-fly micro-adjustment. Some enthusiasts express frustration with shipping delays and a desire to see the watch on a wrist before purchase. One owner flags that the clasp material could be more scratch-resistant, and resizing bracelet pins can be stubborn. On balance, owners rate the Zelos Hammerhead V3 300m Bronze highly for its unique design and build quality at its price point.

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