Side by side

Glycine Combat Sub Sport GMTvsSeiko Astron GPS Solar 2024 Limited Edition

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 refined feel and sleek wearability, with many noting its thin profile and downward-curving lugs contribute to comfort. Reviewers and owners alike highlight its exceptional value and solid build quality. Some owners report the lume is sub-par, and one noted a slightly off-color lume pip on the chapter ring. Accuracy figures vary, with one owner achieving +1 second per day after regulation, while another found the stock beat error acceptable for the price. The power reserve can be inconsistent, and the lack of a date cyclops is a minor drawback for some. On balance, owners rate the Glycine Combat Sub Sport GMT highly for its impressive thinness and refined aesthetic at its price point.

Seiko Astron GPS Solar 2024 Limited Edition

The Seiko Astron GPS Solar 2024 Limited Edition is widely praised for its light and thin wearability, with owners highlighting its comfortable 39mm size and titanium construction. Reviewers and owners alike commend its excellent lume application, clear and legible dial, and subtle gold accents. The watch offers automatic GPS time adjustment for global time and location updates, a perpetual calendar, and a six-month power reserve, eliminating battery changes. Some owners, however, find its dial too shiny for maximum versatility and note that its size wears larger than its dimensions suggest, making it less of a daily driver for some. A minor point of contention for some is the chapter ring alignment, which was noted as slightly imperfect. Overall, owners and reviewers rate the Seiko Astron GPS Solar 2024 Limited Edition highly for its blend of high-tech functionality, comfortable wearability, and attractive design.

At a glance

19 of 29 specs differ
Diameter
Combat Sub Sport GMT42mm
Astron GPS Solar 2024 Limited Edition41.2mm
Power Reserve
Combat Sub Sport GMT
Astron GPS Solar 2024 Limited Edition
Water Resistance
Combat Sub Sport GMT200m
Astron GPS Solar 2024 Limited Edition100m
MSRP
Combat Sub Sport GMT$1,295
Astron GPS Solar 2024 Limited Edition$2,300

Full specifications

Case

8 specs
Diameter
42mm
41.2mm
Thickness
11mm
12mm
Lug-to-Lug
48.5mm
Lug Width
22mm
14mm
Material
Rose Gold
Titanium
Finish
Water Resistance
200m
100m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Super-clear coating
Dial Color
Blue
Indices
Lume
None
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
RONDA 515.24H
3X62
Beat Rate
0 vph
Power Reserve
0h
Jewels
1
10
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$1,295
$2,300
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