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Aigi Watches ARCTIC GMTvsSeiko Prospex Sea Save the Ocean Special Edition

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

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What people say

Owners + reviewers, side by side

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

Aigi Watches ARCTIC GMT

The Aigi Watches ARCTIC GMT is widely seen as an excellent value at $250, featuring a Seiko NH34 automatic movement, a box sapphire crystal, and a lumed sapphire bezel. Owners appreciate its semi-original design among NH34 GMTs and its sporty look, especially with the included rubber strap, and are drawn to supporting an emerging brand. Overall, owners rate the Aigi Watches ARCTIC GMT highly for its strong value proposition and appealing design.

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

11 of 29 specs differ
Diameter
ARCTIC GMT41mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
ARCTIC GMT41h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
ARCTIC GMT200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
ARCTIC GMT$560
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

5 specs
Category
Diver
Diameter
41mm
45mm
Thickness
11.95mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Lug Width
0mm
22mm

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
white
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

2 specs
Caliber
Seiko NH34
Seiko 4R36
Jewels
0
24

Pricing

1 specs
MSRP
$560
$625
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