Casio GMB2100GD-5AvsElliot Brown Holton: 101-001
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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.
GMB2100GD-5A
Holton: 101-001
Diameter
44.4mm
43mm
Thickness
12.8mm
12mm
lowest
Water Resistance
200m
200m
Power Reserve
n/a
41h
MSRP
$600
$542
lowest
Movement
5691
Ronda 715
Case
2 specsCrystal & Dial
2 specsMovement
3 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 Elliot Brown HOLTON: 101-001 is widely praised for its outstanding fit and finish, vivid legibility with a pure matte black dial, and terrific feel on the wrist. One owner noted ordering the 101-001 with a rubber strap. A potential drawback is that the bezel lume on the Holton NIVO is significantly brighter than the dial lume, making the dial difficult to read in the dark, which is disappointing for a watch designed for low-light use. The Elliot Brown Holton Professional is an issued watch for UKSF. Overall, owners rate the Elliot Brown HOLTON: 101-001 highly for its robust build and excellent legibility.
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