Casio GMA-P2100vsHemel HF1 Snelway
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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.

GMA-P2100

HF1 Snelway
Diameter
40.2mm
40mm
Lug-to-Lug
46mm
n/a
Thickness
11.2mm
11mm
lowest
Water Resistance
200m
highest
100m
MSRP
$110
lowest
$200
Movement
Quartz
Seiko VH31
Case
8 specsCrystal & Dial
3 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Casio GMA-P2100 for its compact size, with one user noting it fits their wrist when other G-Shocks do not. The watch is described as having a smart look and keeping time with near perfection. One owner finds the GMA-P2100 a suitable size despite considering larger models, and another humorously suggests "P" in the model name might stand for "Pico" due to its small stature. On balance, owners rate the Casio GMA-P2100 highly for its wearability and reliable timekeeping.
The watch is praised for its 200m water resistance and slimmer, sleeker design compared to traditional G-Shocks. Reviewers noted the integrated calculator function. No shared weaknesses were identified.
The Hemel HF1 Snelway is praised for its stunning reverse panda dial and the satisfying, fast action of its reset pusher. Some owners appreciate the Hemel designs, though one user feels they are sometimes rushed. The watch has a 40mm case and 100m water resistance. Overall, owners appreciate the Hemel HF1 Snelway for its distinctive dial and engaging pusher feel.
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