Casio GAC-2500vsLuminox Navy SEAL 3500 Semper Fortis 45mm

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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.

Casio GAC-2500 at true scale

GAC-2500

Luminox Navy SEAL 3500 Semper Fortis 45mm at true scale

Navy SEAL 3500 Semper Fortis 45mm

Diameter

44.5mm

45mm

Thickness

12.7mm

lowest

14mm

Water Resistance

200m

200m

MSRP

$145

lowest

$695

Movement

5757

Ronda 515

Case

4 specs
Diameter
44.5mm
45mm
Thickness
12.7mm
14mm
Lug Width
n/a
24mm
Material
Resin
CARBONOX™

Movement

1 specs
Caliber
5757
Ronda 515

Pricing

1 specs
MSRP
$145
$695
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Reviews

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

Casio GAC-2500

The Casio GAC-2500 earns praise from its reviewer for a dial that reads cleanly, with well-spaced, horizontally aligned hands, a beveled date aperture, and a stopwatch that displays as a digit, which is practical for running. The main criticism is the bracelet and clasp: the links feel loose with noticeable gaps, and the pressed-steel clasp offers only three micro-adjustment points. Community input is thin, since the only owner-side source is a spec post that notes magnetically held hands can briefly sit wrong after an impact. Overall, the reviewer rates the Casio GAC-2500 well for its dial and running functionality, with the bracelet fit being the main reservation.

Luminox Navy SEAL 3500 Semper Fortis 45mm

The Luminox Navy SEAL 3500 Semper Fortis 45mm is praised for its durability, lightweight Carbonox case, and constant tritium lume ideal for low-light conditions. Owners find the 45mm case versatile for everyday and business-casual wear, noting its scratch resistance. One owner highlights the dial's "NAVY SEALS" printing as a desirable, rarer feature. However, one community voice expresses extreme dissatisfaction, calling the watches a disaster and advising against purchase. Overall, owners rate the Luminox Navy SEAL 3500 Semper Fortis 45mm highly for its rugged build and reliable tritium illumination.

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