Side by side

Glycine Combat SubvsSeiko Prospex Sea Save the Ocean Special Edition

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

Combat Sub
GlycineCombat Sub
MSRP $1,850

At a glance

14 of 29 specs differ
Diameter
Combat Sub42mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Combat Sub38h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Combat Sub200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Combat Sub$1,850
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

5 specs
Diameter
42mm
45mm
Thickness
10.45mm
13.2mm
Lug-to-Lug
47.7mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
SW200-1
4R36
Power Reserve
38h
41h
Jewels
26
24
Complications
Date
None

Pricing

1 specs
MSRP
$1,850
$625

Follow this matchup

Get a note when Glycine Combat Sub vs Seiko Prospex Sea Save the Ocean Special Edition gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Glycine Combat Sub

Owners widely praise the Glycine Combat Sub for its exceptional thinness, with many noting its 10.4mm to 10.8mm profile for a diver, perfect proportions, and solid build quality that offers significant value, especially at discounted prices. Its unique aesthetic is appreciated for avoiding homage looks, and the lug design contributes to a smaller perceived wear size despite its 42mm case. Some owners report an inconsistent power reserve and sub-par lume that can be difficult to read at night, while one owner noted a slightly off-color lume pip on the chapter ring. Overall, owners rate the Glycine Combat Sub highly for its refined feel, slim profile, and value proposition.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.