Spinnaker Dumas AutomaticvsZelos Hammerhead 1000m Diver Black with Ceramic Bezel

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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.

Spinnaker Dumas Automatic at true scale

Dumas Automatic

Zelos Hammerhead 1000m Diver Black with Ceramic Bezel at true scale

Hammerhead 1000m Diver Black with Ceramic Bezel

Diameter

44mm

44mm

Lug-to-Lug

48mm

lowest

49mm

Thickness

15mm

lowest

17mm

Water Resistance

300m

1000m

highest

MSRP

$239

lowest

$499

Movement

Seiko NH35

Seiko NH35

Case

4 specs
Thickness
15mm
17mm
Lug-to-Lug
48mm
49mm
Material
316L Stainless Steel
Bronze
Water Resistance
300m
1000m

Crystal & Dial

1 specs
Dial Color
Blue
n/a

Pricing

1 specs
MSRP
$239
$499
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its robust build quality, attractive textured blue dial, and excellent finishing for its price point. The watch is noted for its comfortable wearability, attributed to a short lug-to-lug distance, and owners report positive experiences with the Seiko NH35 movement. Some owners mention a mineral crystal instead of sapphire, a bracelet with a learning curve, and a crown that feels slightly small. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetic appeal and solid construction at a fair price.

Zelos Hammerhead 1000m Diver Black with Ceramic Bezel

The Zelos Hammerhead 1000m Diver Black with Ceramic Bezel is widely praised for its unique, masculine, and angular case design, with owners finding it the most distinctive microbrand diver they have encountered. Reviewers highlight its ruggedness, legible dial with ample lume, and durable ceramic bezel, all offered at an attractive price point with impressive specifications including 1000m water resistance and a Seiko NH35 automatic movement. Some owners note that the bezel and crown notches could be smoother, and one reviewer suggests a thinner case might have been preferable, while another points out that the domed sapphire crystal can cause reflections. On balance, owners and reviewers rate the Zelos Hammerhead 1000m Diver Black with Ceramic Bezel highly for its distinctive design and exceptional value at its price point.