Seiko Prospex SeavsOrient Sports Diver
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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.

Prospex Sea

Sports Diver
Diameter
42mm
43.6mm
Lug-to-Lug
48.6mm
lowest
51mm
Thickness
13.3mm
lowest
14mm
Water Resistance
300m
highest
100m
Power Reserve
72h
highest
50h
MSRP
n/a
$745
Movement
Seiko 6R54
Orient F6724
Case
4 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Seiko Prospex Sea is widely recognized for its excellent value and solid build quality, with many owners appreciating its classic dive watch design and legible dial. Reviewers consistently praise its lume, with one owner noting it as excellent. The watch's finishing is also a frequent highlight, described as impressive and well-executed for its price point. Some owners find the 42mm case size wears well, even on smaller wrists, while others describe it as substantial and potentially uncomfortable for smaller wrists. The movement is noted as a 6R54 automatic. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its robust construction and classic dive watch aesthetics at a fair price.
Owners widely praise the Orient Sports Diver for its stylish appearance and value, with one owner selecting it over microbrands for its in-house movement and original design. The starburst blue dial and pebble-like design are noted as attractive features. Some find the watch too large and thick, and one owner considers the black lume inadequate for diving. The in-house Cal.F6N42 movement is not the most accurate, and a minor criticism is the lack of a lumed pip on the bezel's zero marker. Overall, owners rate the Orient Sports Diver highly for its stylish appearance and value for money.
The Orient Star Diver features excellent legibility due to its luminous hands and markers, along with sapphire crystal. The watch has a power reserve indicator.
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