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.

GAC-2500

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 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
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