Side by side

Pinion Pure BronzevsGrand Seiko SBGR321

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

Pure Bronze
PinionPure Bronze
MSRP $1,715
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

10 of 29 specs differ
Diameter
Pure Bronze38mm
SBGR32140mm
Power Reserve
Pure Bronze45h
SBGR32172h
Water Resistance
Pure Bronze100m
SBGR321100m
MSRP
Pure Bronze$1,715
SBGR321$5,200

Full specifications

Case

5 specs
Diameter
38mm
40mm
Thickness
11mm
13mm
Lug-to-Lug
44mm
46.6mm
Lug Width
20mm
20mm
Material
Bronze
Stainless Steel

Crystal & Dial

1 specs
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW261-1
9S65
Type
Manual
Automatic
Power Reserve
45h
72h

Pricing

1 specs
MSRP
$1,715
$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.

Pinion Pure Bronze

The Pinion Pure Bronze is lauded for its refreshing design, featuring a beautiful layered dial with applied numerals and luminous indexes. Reviewers praise its satisfying manual-winding action from the Unitas 6498 movement, which offers a 45-hour power reserve. One reviewer suggested a satin finish for the crown to match the case back and buckle. Overall, reviewers rate the Pinion Pure Bronze highly for its unique bronze case that patinates over time and its clear, subtly finished dial.

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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