Seagull Ocean Series Pro 300m Waterproof Gradient Wave-textured Dial 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 Gradient Wave-textured Dial Diving Watch 41mm

Prospex Sea 1965 Heritage Diver's Watch
Diameter
41mm
40mm
Lug-to-Lug
47mm
46.4mm
lowest
Thickness
13.5mm
13mm
lowest
Water Resistance
300m
300m
Power Reserve
n/a
72h
MSRP
$449
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 Gradient Wave-textured Dial Diving Watch 41mm for its excellent fit, finish, and general quality, comparable to higher-end brands, and the bracelet is noted as particularly nice and flexible. The gradient wave-textured dial is a standout feature, with one owner calling it beautifully finished and another loving its aesthetic. The quick-release spring bars are considered ingenious, and the 316L stainless steel build contributes to its solid diver reputation. One owner purchased the Seagull Ocean Series Pro 300m Waterproof Gradient Wave-textured Dial Diving Watch 41mm for $415 with coupons. On balance, owners rate the Seagull Ocean Series Pro 300m Waterproof Gradient Wave-textured Dial Diving Watch 41mm highly for its impressive build quality and dial finishing at its price point.
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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