Side by side

Breitling Aviator 8 Automatic Day Date 41vsGrand Seiko SBGR321

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

Aviator 8 Automatic Day Date 41
BreitlingAviator 8 Automatic Day Date 41
MSRP $4,750
SBGR321
Grand SeikoSBGR321
MSRP $5,200
What people say

Owners + reviewers, side by side

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

Breitling Aviator 8 Automatic Day Date 41

Owners widely praise the Breitling Aviator 8 Automatic Day Date 41 for its manageable 41mm case size, a welcome departure from larger traditional chronographs, and its simpler, less busy dial design. Reviewers and owners alike highlight its comfortable, slim profile, and the well-engineered, smooth rotating bezel that evokes aviation heritage. The watch is also noted for offering a day-date complication with a fully spelled-out day, a feature uncommon in its price range, and many find its vibrant lume and classic styling make it a great everyday watch. Accuracy is reported as excellent, with one owner noting regulation to within 2 seconds per day. On balance, owners and reviewers rate the Breitling Aviator 8 Automatic Day Date 41 highly for its practical size, refined dial, and compelling day-date complication.

Grand Seiko SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

At a glance

16 of 29 specs differ
Diameter
Aviator 8 Automatic Day Date 4141mm
SBGR32140mm
Power Reserve
Aviator 8 Automatic Day Date 4138h
SBGR32172h
Water Resistance
Aviator 8 Automatic Day Date 41100m
SBGR321100m
MSRP
Aviator 8 Automatic Day Date 41$4,750
SBGR321$5,200

Full specifications

Case

6 specs
Category
Mechanical
Dress
Diameter
41mm
40mm
Thickness
11.19mm
13mm
Lug-to-Lug
46.6mm
Finish
Stainless steel
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Black
Indices
Applied

Movement

5 specs
Caliber
Breitling 45
9S65
Beat Rate
0 vph
28,800 vph
Power Reserve
38h
72h
Jewels
0
25
Complications
Day-Date
None

Pricing

1 specs
MSRP
$4,750
$5,200
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.

Follow this matchup

Get a note when Breitling Aviator 8 Automatic Day Date 41 vs Grand Seiko SBGR321 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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