Side by side

Glycine Combat Sub Sport GMTvsSeiko Prospex Land Mechanical GMT

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

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 Sport GMT

Owners widely praise the Glycine Combat Sub Sport GMT for its solid build, slim wearability, and value, with many noting its comfortable fit due to curved lugs and thin case. Reviewers highlight its classic design, unique dial, and legible date window, while some owners report excellent bezel action and accuracy under +1 second per day after regulation. A minor criticism is a slightly off-color lume pip on the chapter ring, and one owner notes sub-par lume and inconsistent power reserve not always reaching 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport GMT highly for its comfortable wearability and value at the price point.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

At a glance

17 of 29 specs differ
Diameter
Combat Sub Sport GMT42mm
Prospex Land Mechanical GMT39.5mm
Power Reserve
Combat Sub Sport GMT48h
Prospex Land Mechanical GMT72h
Water Resistance
Combat Sub Sport GMT200m
Prospex Land Mechanical GMT200m
MSRP
Combat Sub Sport GMT$2,995
Prospex Land Mechanical GMT$1,150

Full specifications

Case

6 specs
Diameter
42mm
39.5mm
Thickness
10.85mm
13.6mm
Lug-to-Lug
46.4mm
Lug Width
22mm
20mm
Finish
Caseback

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Indices
Lume
Luminous
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
Sellita SW330-2
6R54
Beat Rate
28,800 vph
0 vph
Power Reserve
48h
72h
Jewels
25
24
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,995
$1,150
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