Seiko Purchase ProspexvsZelos 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.

Purchase Prospex

Hammerhead V3 300m Titanium
Diameter
45mm
44mm
Lug-to-Lug
47.7mm
n/a
Thickness
13.2mm
13mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
41h
n/a
MSRP
$755
$559
lowest
Movement
Seiko 4R36
Seiko NH35
Case
6 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the beauty of the Seiko Prospex HBB002K1. Some owners question the value proposition at its $750 limited-edition price point, citing the use of a budget movement when Seiko offers newer 6R series calibers. On balance, owners find the Seiko Prospex HBB002K1 beautiful, though some express reservations about its value given the movement choice.
Owners widely praise the Zelos Hammerhead V3 300m Titanium for its unique, otherworldly dial finishing that reflects light beautifully, its excellent lume application, and its lightweight, comfortable wearability, especially given its 44mm case size and 48mm lug-to-lug. The solid build quality is noted as exceeding its price point, with a comfortable bracelet featuring on-the-fly micro-adjustment. However, some owners find the clasp could be more scratch-resistant, and resizing bracelet pins can be stubborn. One owner reported a previous model's bezel was very hard to turn and the date was skewed. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its unique dial and impressive build quality at the price.
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