Side by side

Spinnaker Bradner GMTvsSeiko Astron GPS Solar 2024 Limited Edition

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Astron GPS Solar 2024 Limited Edition
SeikoAstron GPS Solar 2024 Limited Edition
MSRP $2,300

At a glance

13 of 29 specs differ
Diameter
Bradner GMT42mm
Astron GPS Solar 2024 Limited Edition41.2mm
Power Reserve
Bradner GMT40h
Astron GPS Solar 2024 Limited Edition40h
Water Resistance
Bradner GMT180m
Astron GPS Solar 2024 Limited Edition100m
MSRP
Bradner GMT$299
Astron GPS Solar 2024 Limited Edition$2,300

Full specifications

Case

6 specs
Diameter
42mm
41.2mm
Thickness
15mm
12mm
Lug-to-Lug
50mm
48.5mm
Lug Width
22mm
14mm
Material
316L Stainless Steel
Titanium
Water Resistance
180m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Brown
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH34A
3X62
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$299
$2,300

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What people say

Owners + reviewers, side by side

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

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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.

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