Casio GM-S2110BP-5AvsLuminox Leatherback SEA Turtle 39mm
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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
Leatherback SEA Turtle 39mm
Diameter
40.5mm
39mm
Thickness
11mm
lowest
12mm
Water Resistance
200m
highest
100m
MSRP
$210
lowest
$475
Movement
5730
Ronda 515
Case
5 specsCrystal & Dial
1 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.
Owners praise the Luminox Leatherback SEA Turtle 39mm for its everyday wearability, smaller 39mm size, and reliable tritium lume. Some note cost-cutting measures like tritium on even hour markers only and Luminova on the bezel pip, which are considered acceptable for the price. One owner highlights the 19mm strap size as a challenge for finding replacements. Overall, owners rate the Luminox Leatherback SEA Turtle 39mm highly for its accessible tritium lume and comfortable wearability at its price point.
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