Casio GM-S2110BP-5AvsProTek Watches Model PT3102
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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.
GM-S2110BP-5A
Model PT3102
Diameter
40.5mm
40mm
Thickness
11mm
11mm
Water Resistance
200m
highest
100m
MSRP
$210
lowest
$575
Movement
5730
Quartz
Case
4 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners note the Casio GM-S2110BP-5A's strap gets dirty easily but cleans well, and the watch itself resists scratches during frequent wear. Some owners lament the lack of a positive display and find the lume could be brighter. A metal conversion kit is available, transforming the watch into a daily wearer. Overall, owners appreciate the Casio GM-S2110BP-5A for its scratch resistance and the potential for customization via modding kits.
The ProTek Watches Model PT3102 is widely praised for its exceptional low-light visibility and excellent tritium illumination, described as insane and offering a great glow. Owners consider it a worthwhile upgrade from lower-end tritium watches. The watch features a robust titanium case and 100m water resistance. One reviewer noted the minute hand did not reach the minute track and expressed a desire for a screw-down crown. Overall, owners and reviewers rate the ProTek Watches Model PT3102 highly for its outstanding tritium lume and robust build.
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