Casio GM-S2110BP-5AvsScurfa Diver One ND513 Black 300m

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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

Diver One ND513 Black 300m
Diameter
40.5mm
40mm
Thickness
11mm
n/a
Water Resistance
200m
300m
highest
MSRP
$210
$194
lowest
Movement
5730
Ronda 513SM
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 widely praise the Scurfa Diver One ND513 Black 300m as an excellent tool watch, valuing its toughness, legibility, and 300m water resistance. Reviewers and owners alike highlight the robust 40mm case and precise 120-click bezel, with one owner appreciating its versatility as an everyday and business-casual watch. The watch features tritium lume, a domed sapphire crystal with blue AR coating, and a matte black dial. Some owners note the lume is not as impressive as on the brand's higher-end models. Overall, owners rate the Scurfa Diver One ND513 Black 300m highly for its robust build and tool-watch functionality at its price point.
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