Phoibos Great WallvsSeiko 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.

Great Wall

Prospex Sea
Diameter
42mm
41mm
Lug-to-Lug
48mm
46.9mm
lowest
Thickness
12mm
lowest
12.3mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
70h
MSRP
$465
lowest
$900
Movement
Miyota 9015
Seiko 6R35
Case
5 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Phoibos Great Wall for its solid build quality and impressive wrist presence, noting the metallic 3D brick pattern on the dial. On balance, owners rate the Phoibos Great Wall highly for its robust construction and distinctive dial design.
The watch's lume is a significant strength, described as "crazy lume" and a "lume monster." Reviewers noted the bezel action as a positive point. One reviewer mentioned a weakness with the bracelet, but details were not provided.
Owners widely praise the Seiko Prospex Sea for its value and robust build, with many highlighting its excellent lume and attractive design. Some owners find the 41mm case size perfect, while others with smaller wrists consider it too large, thick, and heavy. The stock rubber strap is noted as uncomfortable for land wear by one owner. Overall, owners rate the Seiko Prospex Sea highly for its design and value at the price point.
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