Side by side

Grand Seiko SBGP007vsSeiko Astron

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

SBGP007
Grand SeikoSBGP007
MSRP $3,900
Astron
SeikoAstron
MSRP $2,500
What people say

Owners + reviewers, side by side

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

Grand Seiko SBGP007

Grand Seiko SBGP007 owners widely praise its finishing and the quality of its stainless steel case and bracelet with solid end links. The watch features a 40mm case, a smooth bezel, a deep blue textured dial, and Grand Seiko alpha hands. It is powered by the Seiko calibre 9F85 quartz movement. Owners are split on the red seconds hand and gold star emblem, with some finding them too bright or childish, while others defend the star as a mark of accuracy. The $3900 MSRP is debated, with some considering it high for a quartz watch. Overall, owners rate the Grand Seiko SBGP007 highly for its exceptional finishing at the price point, despite some debate over aesthetic details.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

At a glance

11 of 29 specs differ
Diameter
SBGP00740mm
Astron42mm
Power Reserve
SBGP00740h
Astron40h
Water Resistance
SBGP007100m
Astron100m
MSRP
SBGP007$3,900
Astron$2,500

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
40mm
42mm
Thickness
10.8mm
12.4mm
Lug-to-Lug
47mm
49.5mm
Lug Width
20mm
14mm
Material
Gold
Titanium

Crystal & Dial

2 specs
AR Coating
Yes
Super-clear coating
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
9F85
5X83
Jewels
25
14

Pricing

1 specs
MSRP
$3,900
$2,500
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