Side by side

Grand Seiko SBGR321vsLongines CONQUEST HERITAGE

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200
CONQUEST HERITAGE
LonginesCONQUEST HERITAGE
MSRP $3,400

At a glance

18 of 29 specs differ
Diameter
SBGR32140mm
CONQUEST HERITAGE38mm
Power Reserve
SBGR32172h
CONQUEST HERITAGE
Water Resistance
SBGR321100m
CONQUEST HERITAGE50m
MSRP
SBGR321$5,200
CONQUEST HERITAGE$3,400

Full specifications

Case

7 specs
Category
Dress
Diameter
40mm
38mm
Thickness
13mm
10.8mm
Lug-to-Lug
46.6mm
48.1mm
Finish
Brushed and polished
Water Resistance
100m
50m
Caseback
Solid

Crystal & Dial

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

Movement

6 specs
Caliber
9S65
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
72h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$5,200
$3,400

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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.

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.

Longines CONQUEST HERITAGE

Owners widely praise the Longines Conquest Heritage for its beautiful, unique dial designs and faithful vintage re-release aesthetic, with reviewers highlighting its balanced, thin, and lightweight feel. The 35mm version is noted for its pie-pan dial, applied markers, dauphine hands with lume, and ETA 2824/2 movement, while the Central Power Reserve variant revives a 1959 design with a novel central power reserve indicator. Some owners find the Central Power Reserve model slightly big and chunky, and one reviewer notes the lugs can create a noticeable gap on the wrist. The indices and hands can be harder to read in direct light. On balance, owners and reviewers rate the Longines Conquest Heritage highly for its elegant, vintage look and attractive finishing at its price point.

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