Casio GMB2100GD-5AvsCasio MDV-107D
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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
MDV-107D
Diameter
44.4mm
46.3mm
Thickness
12.8mm
12.1mm
lowest
Water Resistance
200m
200m
MSRP
$600
$120
lowest
Movement
5691
Casio 2784
Case
2 specsCrystal & Dial
1 specsMovement
2 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 Casio MDV-107D for its exceptional value and solid, durable build, noting its clean dial design and versatility for everyday and business-casual wear. The bezel on this model rotates. Some owners find the hand lume weak and the date window difficult to read, with one owner describing the metal strap as cheap. The Casio MDV-107D is available for around $125, though the Duro line can be difficult to acquire. On balance, owners rate the Casio MDV-107D highly for its unbeatable quality and value as an everyday diver.
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