Side by side

Orient 75th Anniversary RA-AC0Q12L30BvsGrand Seiko SBGR321

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

75th Anniversary RA-AC0Q12L30B
Orient75th Anniversary RA-AC0Q12L30B
MSRP $405
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

13 of 29 specs differ
Diameter
75th Anniversary RA-AC0Q12L30B39.9mm
SBGR32140mm
Power Reserve
75th Anniversary RA-AC0Q12L30B40h
SBGR32172h
Water Resistance
75th Anniversary RA-AC0Q12L30B200m
SBGR321100m
MSRP
75th Anniversary RA-AC0Q12L30B$405
SBGR321$5,200

Full specifications

Case

5 specs
Category
Diver
Dress
Diameter
39.9mm
40mm
Thickness
12.8mm
13mm
Lug-to-Lug
46.5mm
46.6mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Blue
Black

Movement

5 specs
Caliber
F6722
9S65
Beat Rate
21,600 vph
28,800 vph
Power Reserve
40h
72h
Jewels
22
25
Complications
Date
None

Pricing

1 specs
MSRP
$405
$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.

Orient 75th Anniversary RA-AC0Q12L30B

The Orient 75th Anniversary RA-AC0Q12L30B is widely praised for its classy, dressy aesthetic, beautiful periwinkle or light blue sunray dial with deep-relief radial grooves, and crisp engraved bezel numerals, all within a compact 39.9mm to 40mm case. Owners consider it a great value, with some noting it looks better in person and is destined to become a classic, punching above its price point. One owner finds the dial color too feminine for a dive watch and considered the dial craftsmanship inferior to the Presage Cocktail series, while another flags the lack of lume as a drawback. The bracelet clasp and end links are consistently considered a weak point, and the steel case is noted as less rounded than other Orient divers. The watch features 200m water resistance and a 46.5mm lug-to-lug measurement. Overall, owners rate the Orient 75th Anniversary RA-AC0Q12L30B highly for its stunning dial and compact size at the price.

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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