Luminox Master Carbon SEAL Automatic 45mmvsSeagull Ocean Series Pro 300m Waterproof Diving 44mm

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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.

Master Carbon SEAL Automatic 45mm

Ocean Series Pro 300m Waterproof Diving 44mm
Diameter
45mm
44mm
Lug-to-Lug
n/a
51mm
Thickness
14mm
13.5mm
lowest
Water Resistance
200m
300m
highest
MSRP
$1,695
$633
lowest
Movement
Sellita SW220-1
Seagull ST2130
Case
6 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Luminox Master Carbon SEAL Automatic 45mm for its lightweight and scratch-resistant Carbonox case, which has held up well to extreme activities, and appreciate the constant lume from its tritium tubes. However, some owners report issues with the bezel rattling and have observed multiple instances of sheared lugs on the watch. One reviewer noted the rubber strap requires precise cutting and the deployant hardware is mismatched. The Luminox Master Carbon SEAL Automatic 45mm is available on a red strap, with a black strap also offered. On balance, owners value the Luminox Master Carbon SEAL Automatic 45mm for its durable, lightweight carbon case and reliable tritium lume, despite some concerns about build quality and strap design.
Owners praise the quick-release spring bars on the Seagull Ocean Series Pro 300m Waterproof Diving Watch 44mm for simplifying strap changes. The 44mm case is noted as large, though one owner found it fit their wrist well, and the 60-click unidirectional bezel is a familiar feature. Fit, finish, and general quality are considered comparable to a Movado Series 800. On balance, owners rate the Seagull Ocean Series Pro 300m Waterproof Diving Watch 44mm positively for its thoughtful features and build quality at its price point.
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