Glycine Combat SubvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Combat Sub

Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition
Diameter
42mm
42.7mm
Lug-to-Lug
n/a
46.4mm
Thickness
10.4mm
lowest
13.2mm
Water Resistance
200m
200m
Power Reserve
38h
70h
highest
MSRP
$515
lowest
$1,350
Movement
Sellita SW200-1
Seiko 6R35
Case
6 specsCrystal & Dial
5 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Combat Sub for its exceptional thinness, with sources noting case thicknesses around 10.4mm to 10.8mm, perfect proportions, and a refined aesthetic that avoids homage designs. Many highlight its significant value, especially at discounted prices, and its solid build quality. 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 blend of wearability and value.
The Glycine Combat Sub offers good value at its price point, with reviewers highlighting its attractive design and comfortable wear. However, multiple reviewers noted areas where cost-saving measures are apparent in the build quality.
Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition for its beautiful design and refinement over prior models, with its glacier-inspired textured dial being a particular highlight. However, a significant portion of the community finds the €1500 RRP to be too high, suggesting a price point closer to €900-€1000, and note the use of an aluminum bezel insert. Some owners report that the 6R movement runs slow. On balance, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition highly for its aesthetic refinement, though the price point is a notable concern for the community.
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