Side by side

Lum-Tec EclipsevsSeestern S450 Ocean Star

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

Eclipse
Lum-TecEclipse
MSRP $695
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

15 of 29 specs differ
Diameter
Eclipse42mm
S450 Ocean Star40mm
Power Reserve
Eclipse40h
S450 Ocean Star41h
Water Resistance
Eclipse101m
S450 Ocean Star100m
MSRP
Eclipse$695
S450 Ocean Star$299

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
42mm
40mm
Thickness
12mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel
Water Resistance
101m
100m

Crystal & Dial

2 specs
Dial Color
E6
White
Lume
None
Tritium

Movement

5 specs
Caliber
Miyota 9039
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$695
$299

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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.

Seestern S450 Ocean Star

Owners widely praise the Seestern S450 Ocean Star's Yachtmaster-style case and flawless bracelet finishing, with one owner noting the ST2130 movement keeps good time. The bezel action is described as having individual notches but feeling like a friction bezel, while another owner flags the bezel and crown action as smooth with perfect alignment. Lume is a point of contention, with one source describing it as a nice cool blue with ice-white application, while others note it as weak or not matching Prospex standards, despite using BGW-9. The watch is considered a "big boy" ideal for larger wrists (19cm+), potentially too large for 17cm wrists due to its size and non-tapering bracelet. Overall, owners rate the Seestern S450 Ocean Star highly for its build quality and finishing at the price point, despite some reservations about its size and lume intensity.

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