Side by side

Sartory Billard SB05vsGrand Seiko SBGR321

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

9 of 29 specs differ
Diameter
SB0538.5mm
SBGR32140mm
Power Reserve
SB0590h
SBGR32172h
Water Resistance
SB0550m
SBGR321100m
MSRP
SB05
SBGR321$5,200

Full specifications

Case

4 specs
Diameter
38.5mm
40mm
Thickness
8.5mm
13mm
Lug-to-Lug
45.5mm
46.6mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
LJP Cal. 7380
9S65
Type
Manual
Automatic
Power Reserve
90h
72h

Pricing

1 specs
MSRP
$5,200

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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.

Sartory Billard SB05

The dial's Maki-e Raden and aventurine combination is a standout feature. The 38.5mm case size and slim profile are noted for comfort.

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.

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