Side by side

Glycine Airman GMTvsSeiko Prospex Sea Save the Ocean Special Edition

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

Airman GMT
GlycineAirman GMT
MSRP $2,750

At a glance

17 of 29 specs differ
Diameter
Airman GMT44mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Airman GMT48h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Airman GMT100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Airman GMT$2,750
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
44mm
45mm
Thickness
12mm
13.2mm
Lug-to-Lug
47.7mm
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Dial Color
Silver
Black
Indices
Applied
Lume
Luminous
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
SW330-2
4R36
Power Reserve
48h
41h
Jewels
21
24
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,750
$625

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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.

Glycine Airman GMT

Owners widely appreciate the Glycine Airman GMT's ability to track three time zones, with some finding the 42mm size appropriate for its functionality. A reviewer notes the polished GMT hand can be difficult to read and lacks lume, while one owner reported an ETA movement with a misaligned GMT hand. Another owner finds the lume pips weaker than the hands.

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.

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