Side by side

Zelos Hammerhead (Tantalum LE)vsSeiko 5 Sports SKX series

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
5 Sports SKX series
Seiko5 Sports SKX series
MSRP $495

At a glance

13 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
5 Sports SKX series42.5mm
Power Reserve
Hammerhead (Tantalum LE)40h
5 Sports SKX series41h
Water Resistance
Hammerhead (Tantalum LE)300m
5 Sports SKX series100m
MSRP
Hammerhead (Tantalum LE)$1,499
5 Sports SKX series$495

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
44mm
42.5mm
Thickness
13mm
13.6mm
Lug-to-Lug
44mm
46mm
Material
Titanium
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Hardlex
Dial Color
Tantalum LE
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH35
4R34
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$1,499
$495

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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.

Seiko 5 Sports SKX series

The Seiko 5 Sports SKX series is widely praised as an excellent gateway watch, offering great value with a solid build and powerful lume. Owners widely report that the NH36 movement's accuracy is a "luck of the draw," with official specs allowing up to +/-40 seconds per day, though many experience +/-5 to 10 seconds. Some owners note the lack of a screw-down crown and 100m water resistance, while others highlight its ISO 6425 compliance, 200m water resistance, and screw-down crown as superior tool watch features. Some owners find the original SKX models heavier and bulkier than newer lines, while others praise its iconic, tough, and rugged dive watch design and proven durability. On balance, owners and reviewers rate the Seiko 5 Sports SKX series highly for its iconic, durable dive watch design and strong value proposition.

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