Side by side

Grand Seiko SBGR321vsSpinnaker Croft

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200
Croft
SpinnakerCroft
MSRP $219

At a glance

10 of 29 specs differ
Diameter
SBGR32140mm
Croft40mm
Power Reserve
SBGR32172h
Croft40h
Water Resistance
SBGR321100m
Croft150m
MSRP
SBGR321$5,200
Croft$219

Full specifications

Case

5 specs
Category
Dress
Diver
Thickness
13mm
14mm
Lug-to-Lug
46.6mm
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
150m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Elemental

Movement

2 specs
Caliber
9S65
SII NH35A
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,200
$219

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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.

Spinnaker Croft

Owners and reviewers widely praise the Spinnaker Croft for its vibrant dial colors, chunky hands and bezel, and overall value, with one owner noting the Miyota 8218 movement and cyclops as appreciated features. Reviewers flag the bracelet and clasp as budget-friendly limitations, citing friction-fit pins, sharp edges, and a stiff security lock. On balance, owners and reviewers rate the Spinnaker Croft highly for its accessible skeletonized dive watch aesthetic and appealing design at its price point.

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