Side by side

Horage Omnium K2vsGrand Seiko SBGR321

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

Omnium K2
HorageOmnium K2
MSRP $5,140
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

8 of 29 specs differ
Diameter
Omnium K237.3mm
SBGR32140mm
Power Reserve
Omnium K272h
SBGR32172h
Water Resistance
Omnium K2100m
SBGR321100m
MSRP
Omnium K2$5,140
SBGR321$5,200

Full specifications

Case

3 specs
Diameter
37.3mm
40mm
Thickness
7.95mm
13mm
Lug-to-Lug
43.8mm
46.6mm

Crystal & Dial

2 specs
AR Coating
No
Yes
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Horage K2
9S65
Power Reserve
72h
72h

Pricing

1 specs
MSRP
$5,140
$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.

Horage Omnium K2

The Horage Omnium K2 is lauded for its slim 7.95mm profile and chronometer-certified K2 micro-rotor movement with a 72-hour power reserve. Reviewers note its technical innovation, including a proprietary silicon escapement and modular K1 movement, and praise its value. However, some find the molded, luminous hour numerals too whimsical, and the explicit mention of "silicon escapement" on the dial is considered unnecessary. On balance, reviewers rate the Horage Omnium K2 highly for its technical innovation and slim profile at its price point.

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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