Side by side

Bremont S302vsSeiko Astron

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

S302
BremontS302
MSRP $3,900
Astron
SeikoAstron
MSRP $2,200

At a glance

14 of 29 specs differ
Diameter
S30240mm
Astron41.2mm
Power Reserve
S30240h
Astron40h
Water Resistance
S302300m
Astron100m
MSRP
S302$3,900
Astron$2,200

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40mm
41.2mm
Thickness
13mm
12mm
Lug-to-Lug
48.5mm
Lug Width
20mm
14mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
BE-92AE
3X62
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$3,900
$2,200

Follow this matchup

Get a note when Bremont S302 vs Seiko Astron gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Bremont S302

Owners widely praise the Bremont S302 for its balanced 40mm proportions, legible matte dial with attractive tan accents, and satisfying bezel action, with one owner noting its hard, scratch-resistant case. Reviewers highlight its 300m water resistance and GMT function, though some find the bezel integration a compromise and the GMT hand adjustment limited. Accuracy figures vary, with one owner reporting theirs keeps accurate time and another noting potential alignment issues requiring service. The ETA movement at its price point is considered high by some reviewers. Overall, owners and reviewers appreciate the Bremont S302 as a handsome and functional dive-style GMT, with its comfortable lug design and subtle appeal being key strengths.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular time-telling technology, GPS time sync, and grab-and-go convenience, with many calling it the best watch they have ever owned. Reviewers and owners highlight the well-managed dial detail, textured hour markers, and high-contrast edges, as well as the well-finished case and bracelet. Some find the lightweight titanium build and quick bracelet adjustment contribute to comfortable wearability. Accuracy is noted as +/- 15 seconds per month without GPS, though the autonomous quartz movement can be easily reset by looking at the sky. Criticisms include DST not being automatically implemented, recessed buttons requiring a sharp object for adjustment, and sparse lume with no 12 o'clock marker. Some owners feel the price point is too expensive for its aesthetic appeal. Overall, owners rate the Seiko Astron highly for its advanced time-telling technology and convenient features.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.