Side by side

Second Hour Giant StridevsSeiko 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.

Second Hour Giant Stride

The Silietta SW200 movement is a strength. The price point relative to other microbrand super compressor options is a weakness.

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

13 of 29 specs differ
Diameter
Giant Stride42mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Giant Stride
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Giant Stride200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Giant Stride$725
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

5 specs
Category
Diver
Diameter
42mm
45mm
Thickness
0mm
13.2mm
Lug-to-Lug
0mm
47.7mm
Lug Width
0mm
22mm

Crystal & Dial

4 specs
Crystal
Sapphire
AR Coating
Anti-reflective coating on inner surface
Dial Color
Silver
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 4R36
Power Reserve
41h
Jewels
0
24

Pricing

1 specs
MSRP
$725
$625
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