Side by side

Grand Seiko SBGR321vsLongines HYDROCONQUEST MESH

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200
HYDROCONQUEST MESH
LonginesHYDROCONQUEST MESH
MSRP $2,350

At a glance

9 of 29 specs differ
Diameter
SBGR32140mm
HYDROCONQUEST MESH41mm
Power Reserve
SBGR32172h
HYDROCONQUEST MESH72h
Water Resistance
SBGR321100m
HYDROCONQUEST MESH300m
MSRP
SBGR321$5,200
HYDROCONQUEST MESH$2,350

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
40mm
41mm
Thickness
13mm
11.9mm
Lug-to-Lug
46.6mm
51.1mm
Lug Width
20mm
21mm
Water Resistance
100m
300m

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

1 specs
Caliber
9S65
L888.5

Pricing

1 specs
MSRP
$5,200
$2,350

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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 HYDROCONQUEST MESH

Owners widely praise the Longines HYDROCONQUEST MESH for its eye-catching dial colors and impressive fit and finish at its price point, with some noting a well-regulated movement losing around 2 seconds per day and others seeing accuracy within COSC specifications. The tapered mesh bracelet is described as a clever execution with emphasized adjustability, offering a neat feature for wrist swelling. However, some owners criticize the bracelet's clasp for lacking on-the-fly micro-adjustments and the potential for pinching, while winding the screw-down crown is considered inconvenient by some. The lume is a point of contention, with one owner finding it disappointing and fading quickly, while another reports it as strong and long-lasting. Overall, owners rate the Longines HYDROCONQUEST MESH highly for its competitive pricing and versatile, modern retro aesthetic.

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