Glycine Men's Combat Sub Sport GMT 42mm Automatic Watch GL0380vsSeiko Prospex Sea 1968 Heritage Diver's GMT

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Men's Combat Sub Sport GMT 42mm Automatic Watch GL0380

Prospex Sea 1968 Heritage Diver's GMT
Diameter
42mm
42mm
Lug-to-Lug
n/a
48.6mm
Thickness
n/a
12.9mm
Water Resistance
200m
200m
Power Reserve
n/a
72h
MSRP
$795
lowest
$1,500
Movement
Sellita SW330-2
Seiko 6R54
Case
3 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Combat GMT for its value, with one owner noting its compelling specs at a price point of $500-550 USD and another calling Glycine underrated for value. The watch is considered a great travel watch, and its lume lasts longer than a Seiko SKX007's. However, the bezel action is described as too rough and scratchy, though it feels distinct and solid. One owner dislikes the magnified date window and the legibility of red date digits on a black background, with another unable to read the date under any lighting conditions. The Glycine Combat Sub Sport GMT 42mm Automatic Watch GL0380 measures 42mm x 49.5mm x 10.5mm. On balance, owners rate the Glycine Men's Combat Sub Sport GMT 42mm Automatic Watch GL0380 highly for its value proposition and travel watch utility, despite some criticisms regarding the date window and bezel action.
The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and value, with owners noting its comfortable wearability and attractive aesthetic, particularly the silver/white sunray dial and blue ceramic bezel. The improved bracelet clasp with excellent micro-adjustment is a recurring positive point. Some owners report accuracy figures of +3 seconds per day or +/- 5 seconds per day, exceeding the movement's stated range. However, the GMT functionality is considered secondary to its dive watch capabilities by some, with the GMT scale being difficult to read and the caller-style GMT movement being a drawback for certain users. The dial contrast is also noted as lacking by some, and the crown at 4 o'clock is undesirable for a few. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT highly for its blend of dive watch character and GMT functionality, offering significant features for its price.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.









