Side by side

Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited EditionvsLum-Tec Eclipse

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

At a glance

15 of 29 specs differ
Diameter
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition42.6mm
Eclipse42mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition72h
Eclipse40h
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition300m
Eclipse101m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition$3,900
Eclipse$695

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
42.6mm
42mm
Thickness
14.1mm
Lug-to-Lug
49.3mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel (DLC coated)
Water Resistance
300m
101m

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
E6
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
8L45
Miyota 9039
Power Reserve
72h
40h
Jewels
35
25

Pricing

1 specs
MSRP
$3,900
$695

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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.

Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition is praised for its distinctive blue sea ice-inspired dial with a gradient effect and textured finish, celebrating its partnership with JAMSTEC. It is powered by the automatic Calibre 8L45 movement, which provides a 72-hour power reserve. The watch features a 42.6mm stainless steel case with a super-hard coating, a ceramic bezel, and a dual-curved sapphire crystal, offering 300m water resistance. Accuracy is rated between -5/+10 seconds per day. Overall, reviewers highlight the unique dial design and robust specifications as key strengths of the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition.

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.

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