Side by side

Lum-Tec EclipsevsGrand Seiko SBGR321

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

Eclipse
Lum-TecEclipse
MSRP $695
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

12 of 29 specs differ
Diameter
Eclipse42mm
SBGR32140mm
Power Reserve
Eclipse40h
SBGR32172h
Water Resistance
Eclipse101m
SBGR321100m
MSRP
Eclipse$695
SBGR321$5,200

Full specifications

Case

7 specs
Category
Sport
Dress
Diameter
42mm
40mm
Thickness
13mm
Lug-to-Lug
46.6mm
Lug Width
20mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
101m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
E6
Black

Movement

2 specs
Caliber
Miyota 9039
9S65
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$695
$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.

Lum-Tec Eclipse

Owners widely praise the Lum-Tec Eclipse for its comfortable, slim profile and thin wearability, with specific commendations for its beautiful dial, good readability, and bracelet design. The knurling on the crown is also noted as a positive feature. Some owners express concern over the 42mm case size and find the dial's font and indices unappealing, though others appreciate the deep-dish slant. One owner notes a slight gap where the lugs meet the bracelet. The Lum-Tec Eclipse e3 variant features a Miyota 9039 movement, a solid bracelet, a sunburst dial, and exceptionally bright lume. Overall, owners rate the Lum-Tec Eclipse highly for its slim design and attractive dial 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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