Seiko Prospex SeavsLongines HYDROCONQUEST
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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
HYDROCONQUEST
Diameter
43.5mm
43mm
Lug-to-Lug
51mm
lowest
53.5mm
Thickness
13.3mm
11.9mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
70h
72h
highest
MSRP
$1,500
lowest
$2,000
Movement
Seiko 6R35
Longines L888
Case
6 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Seiko Prospex Sea for its value and classic design, with reviewers highlighting its impressive case finishing and excellent LumiBrite lume. One owner found the watch to be a great first proper timepiece, while another noted it felt uncomfortably large, thick, and heavy on a 6.5-inch wrist. The hard-coated steel case offers scratch resistance. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its value and finishing.
Owners widely praise the Longines HYDROCONQUEST for its attractive sunburst dials and near COSC accuracy, with one owner noting a movement losing only about 2 seconds per day. However, opinions are divided on the bracelet, with some finding it comfortable and featuring a useful slide-lock extension, while others criticize it for lacking micro-adjustments, having pinch-prone links, sharp lugs, and an uncomfortable feel. The screw-down crown operation is also a point of contention, described by some as inconvenient or difficult. On balance, owners rate the Longines HYDROCONQUEST highly for its striking dial and value, despite mixed views on its bracelet and crown usability.
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