Side by side

Lum-Tec EclipsevsSeiko Astron

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

Eclipse
Lum-TecEclipse
MSRP $695
Astron
SeikoAstron
MSRP $2,700

At a glance

15 of 29 specs differ
Diameter
Eclipse42mm
Astron43.3mm
Power Reserve
Eclipse40h
Astron40h
Water Resistance
Eclipse101m
Astron100m
MSRP
Eclipse$695
Astron$2,700

Full specifications

Case

7 specs
Category
Sport
Chronograph
Diameter
42mm
43.3mm
Thickness
13.4mm
Lug-to-Lug
49.5mm
Lug Width
14mm
Material
316L Stainless Steel (DLC coated)
Titanium
Water Resistance
101m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
E6
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9039
5X83
Type
Automatic
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$695
$2,700

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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.

Seiko Astron

The Seiko Astron is widely praised for its advanced timekeeping technology, including GPS and radio wave synchronization, offering grab-and-go convenience and exceptional accuracy, with some users reporting +/- 15 seconds per month or even 1/2 second per day for its autonomous quartz movement. Owners appreciate its well-finished titanium cases and bracelets, detailed dials with high-contrast markers, and lightweight, comfortable wearability. However, some find the price point of around $2,000 to $2,400 expensive, noting that GPS sync works best outdoors and that certain models lack screw-down casebacks, impacting water resistance. The lume is described as sparse on some models, and recessed buttons require tools to operate. Overall, owners and reviewers rate the Seiko Astron highly for its cutting-edge technology and comfortable, well-finished design, with the value proposition becoming more compelling when models are found at a discount.

From video reviewers

The watch's automatic time zone adjustment via GPS is a notable feature. The watch's solar-powered charging system can take up to 6 months to fully charge, which may not be ideal for users who need a quick power boost.

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