Side by side

Seiko Prospex Sea Save the Ocean Special EditionvsZelos Hammerhead V3 300m Bronze

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

Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449

At a glance

13 of 29 specs differ
Diameter
Prospex Sea Save the Ocean Special Edition42.4mm
Hammerhead V3 300m Bronze44mm
Power Reserve
Prospex Sea Save the Ocean Special Edition41h
Hammerhead V3 300m Bronze40h
Water Resistance
Prospex Sea Save the Ocean Special Edition200m
Hammerhead V3 300m Bronze300m
MSRP
Prospex Sea Save the Ocean Special Edition$550
Hammerhead V3 300m Bronze$449

Full specifications

Case

6 specs
Diameter
42.4mm
44mm
Thickness
13.4mm
13mm
Lug-to-Lug
49.4mm
44mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Hardlex
Domed Sapphire
Dial Color
Black
Bronze - Frost
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R36
Seiko NH35
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$550
$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.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its visually striking and unique dial designs, often described as a standout feature offering significant aesthetic appeal for the price. Owners and reviewers consistently highlight the attractive blue gradients, wave patterns, and textured finishes that evoke ocean depths. The watch is generally considered comfortable to wear, with a well-proportioned case size and good build quality. Accuracy is reported as around +5 seconds per day by one owner. However, several sources point to the bracelet and clasp as a weak point, with criticisms including pin-and-collar construction, stamped clasps, and a lack of a convenient diver's extension. Some reviewers also note potential issues with bezel alignment and day/date wheel alignment. On balance, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its exceptional dial design and overall value.

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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