Zelos Hammerhead (Tantalum LE)vsSeiko Prospex Sea

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Zelos Hammerhead (Tantalum LE) at true scale

Hammerhead (Tantalum LE)

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

44mm

42mm

Lug-to-Lug

n/a

48.6mm

Thickness

13mm

lowest

13.3mm

Water Resistance

300m

300m

Power Reserve

n/a

72h

MSRP

$1,499

n/a

Movement

Seiko NH35

Seiko 6R54

Case

5 specs
Diameter
44mm
42mm
Thickness
13mm
13.3mm
Lug-to-Lug
n/a
48.6mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Tantalum LE
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
Seiko 6R54
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,499
n/a
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Reviews

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) well for its distinctive forged carbon dial and bezel insert.

Seiko Prospex Sea

The Seiko Prospex Sea is widely recognized for its excellent value and solid build quality, with many owners appreciating its classic dive watch design and legible dial. Reviewers consistently praise its lume, with one owner noting it as excellent. The watch's finishing is also a frequent highlight, described as impressive and well-executed for its price point. Some owners find the 42mm case size wears well, even on smaller wrists, while others describe it as substantial and potentially uncomfortable for smaller wrists. The movement is noted as a 6R54 automatic. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its robust construction and classic dive watch aesthetics at a fair price.

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