Hamilton Khaki Navy Frogman AutovsZelos Hammerhead V3 300m Titanium

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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.

Hamilton Khaki Navy Frogman Auto at true scale

Khaki Navy Frogman Auto

Zelos Hammerhead V3 300m Titanium at true scale

Hammerhead V3 300m Titanium

Diameter

41mm

44mm

Thickness

13.1mm

13mm

lowest

Water Resistance

300m

300m

Power Reserve

80h

n/a

MSRP

$1,395

$559

lowest

Movement

Hamilton H-10

Seiko NH35

Case

5 specs
Diameter
41mm
44mm
Thickness
13.09mm
13mm
Lug-to-Lug
n/a
n/a
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Ti - Mosaic MOP

Movement

2 specs
Caliber
Hamilton H-10
Seiko NH35
Power Reserve
80h
0h

Pricing

1 specs
MSRP
$1,395
$559
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Reviews

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

Hamilton Khaki Navy Frogman Auto

The Hamilton Khaki Navy Frogman Auto is praised for its wearable 41mm size, graceful silhouette, and robust tool-watch aesthetic, with reviewers highlighting its clean, date-free dial, well-defined bezel clicks, and surprisingly nice crown. Owners and reviewers note the pliable rubber strap and a 44mm lug-to-lug measurement that works well on smaller wrists, alongside a 46mm case option in the line. The watch is powered by the Hamilton H-10 automatic movement with an 80-hour power reserve. Some drawbacks noted include a stiff rubber strap, unforgiving buckle, and bezel grip in wet conditions, while one owner found the bezel action a bit stiff. Overall, owners and reviewers rate the Hamilton Khaki Navy Frogman Auto highly for its balanced design and wearability at its price point.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.