Side by side

Grand Seiko SBGR321vsZelos Skyraider 40 Skeleton

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200
Skyraider 40 Skeleton
ZelosSkyraider 40 Skeleton
MSRP $1,999

At a glance

11 of 29 specs differ
Diameter
SBGR32140mm
Skyraider 40 Skeleton40mm
Power Reserve
SBGR32172h
Skyraider 40 Skeleton40h
Water Resistance
SBGR321100m
Skyraider 40 Skeleton50m
MSRP
SBGR321$5,200
Skyraider 40 Skeleton$1,999

Full specifications

Case

5 specs
Category
Dress
Skeleton
Thickness
13mm
8.2mm
Lug-to-Lug
46.6mm
40mm
Material
Stainless Steel
Titanium
Water Resistance
100m
50m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Ti Damascus LE

Movement

3 specs
Caliber
9S65
Swiss Skeletonised Marvin 700
Type
Automatic
Manual
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,200
$1,999

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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.

Zelos Skyraider 40 Skeleton

The Zelos Skyraider 40 Skeleton is noted for its skeletonized dial and the use of BGW9 and C3 Super-LumiNova for legibility. It is powered by a manual-wind ETA 6498 movement, offering a 44-hour power reserve. On balance, the Zelos Skyraider 40 Skeleton is seen as a cool-looking option, though availability is a factor.

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