Side by side

Seiko Prospex SeavsSeiko Prospex Sea Save the Ocean Special Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

At a glance

8 of 29 specs differ
Diameter
Prospex Sea43.5mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Prospex Sea70h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Prospex Sea200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Prospex Sea$1,500
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

4 specs
Diameter
43.5mm
45mm
Thickness
13.3mm
13.2mm
Lug-to-Lug
51mm
47.7mm
Material
Titanium
Stainless Steel

Crystal & Dial

1 specs
Lume
LumiBrite on hands and index(es)
LumiBrite on hands, index(es) and bezel

Movement

2 specs
Caliber
Seiko 6R35
Seiko 4R36
Power Reserve
70h
41h

Pricing

1 specs
MSRP
$1,500
$625
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