Luminox Automatic Sport Timer 42mmvsSeiko Prospex Sea Save the Ocean Special Edition

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Luminox Automatic Sport Timer 42mm at true scale

Automatic Sport Timer 42mm

Seiko Prospex Sea Save the Ocean Special Edition at true scale

Prospex Sea Save the Ocean Special Edition

Diameter

42mm

45mm

Lug-to-Lug

n/a

47.7mm

Thickness

13mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

n/a

41h

MSRP

$1,825

$625

lowest

Movement

Sellita SW220-1

Seiko 4R36

Case

5 specs
Diameter
42mm
45mm
Thickness
13mm
13.2mm
Lug-to-Lug
n/a
47.7mm
Lug Width
24mm
22mm
Material
316L Stainless steel
Stainless Steel

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Black
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW220-1
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,825
$625
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Luminox Automatic Sport Timer 42mm

The Luminox Automatic Sport Timer 42mm is praised for its handsome, durable, and retro design, offering good legibility and comfort, especially with its tritium illumination providing excellent "nightmode" readability. Some owners find the integrated tritium tube on the bezel visually unusual and the Luminox logo applique too reflective. The stainless steel bracelet can make the 42mm case wear larger. One owner views the tritium lume as a disposable feature rather than a long-term cherished element. Overall, owners rate the Luminox Automatic Sport Timer 42mm highly for its durable, retro design and excellent low-light legibility.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its exceptional and unique dial designs, often described as a highlight with wave patterns, lagoon hues, or even manta rays, offering a "Grand Seiko feel" at a regular Seiko price. Owners and reviewers consistently note the attractive color combinations and textured appearances, making it a standout feature. The watch is generally considered solidly built and good value, with satisfactory lume and smooth bezel operation. However, the bracelet and clasp are frequently criticized as underwhelming, rattly, and lacking a convenient diver's extension, a common complaint across several Seiko models. Some owners also express a desire for exhibition casebacks or note potential quality control issues such as misaligned bezels or day/date wheels. Overall, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its visually striking and unique dial designs at an accessible price point.