Casio GAC-2500vsMinus-8 Diver 1T Solar

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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

Minus-8 Diver 1T Solar at true scale

Diver 1T Solar

Diameter

44.5mm

42mm

Lug-to-Lug

n/a

49.2mm

Thickness

12.7mm

lowest

13.2mm

Water Resistance

200m

200m

MSRP

$145

lowest

$348

Movement

5757

Seiko AS01

Case

5 specs
Diameter
44.5mm
42mm
Thickness
12.7mm
13.15mm
Lug-to-Lug
n/a
49.2mm
Lug Width
n/a
20mm
Material
Resin
Titanium

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
Black
n/a

Movement

2 specs
Caliber
5757
Seiko AS01
Type
Quartz
Solar

Pricing

1 specs
MSRP
$145
$348
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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.

Minus-8 Diver 1T Solar

The Minus-8 Diver 1T Solar is a tool-watch praised for its futuristic, digital-inspired aesthetic and grade 2 titanium case with a matte sandblast finish. Owners and reviewers highlight its value and the convenience of the solar-powered Seiko AS01 movement. However, the bezel action is described as flimsy, and the stamped steel folding clasp on the titanium bracelet lacks precision. On balance, owners and reviewers rate the Minus-8 Diver 1T Solar highly for its unique design and solar titanium build at the price point.