Seagull Ocean Series Pro 300m Waterproof Diving Watch 41mmvsSeiko Prospex Sea 1965 Heritage Diver's Watch
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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.

Ocean Series Pro 300m Waterproof Diving Watch 41mm

Prospex Sea 1965 Heritage Diver's Watch
Diameter
41mm
40mm
Lug-to-Lug
47.5mm
46.4mm
lowest
Thickness
13.5mm
13mm
lowest
Water Resistance
300m
300m
Power Reserve
n/a
72h
MSRP
$499
lowest
$1,300
Movement
Seagull ST2130
Seiko 6R55
Case
3 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seagull Ocean Series Pro 300m Waterproof Diving Watch 41mm for its excellent fit, finish, and overall quality, with one owner calling it a solid diver worth every penny at $415. The quick-release spring bar system for strap changes is highlighted as ingenious and simple. However, one owner finds the dial stylistically unappealing, describing some images as tacky and cheap. On balance, owners rate the Seagull Ocean Series Pro 300m Waterproof Diving Watch 41mm highly for its surprising quality and value.
Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined engineering, comfortable 40mm case, and improved 300m water resistance. The watch is noted for its better build quality and finishing compared to some alternatives, featuring a mix of polished and brushed surfaces, with specific callouts for the jewel-toned teal dial with a rippling-water pattern. Some owners consider the price fair, while others suggest it is too high. Accuracy figures vary, with some owners reporting their 6R55 movement performs well within +/- 10 seconds per day, while others note theirs runs slow or have concerns about QC for the price. The bracelet, while improved, lacks modern features like quick-release or extensive micro-adjustments. Overall, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Watch highly for its refined design and build quality at its price point.
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