Casio GM-2110DvsSlow Watches O 01
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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-2110D

O 01
Diameter
44.4mm
42.5mm
Lug-to-Lug
49.3mm
n/a
Thickness
11.8mm
9.8mm
lowest
Water Resistance
200m
highest
100m
MSRP
$330
n/a
Movement
Quartz
Ronda 505.24
Case
6 specsCrystal & Dial
3 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely report the Casio GM-2110D looks fantastic and fits perfectly, with some seeing its metal bezel over a resin case and strap as a step up from simpler versions. However, the bracelet uses a pressed clasp and likely hollow links, not matching higher-end full metal G-Shocks. Some owners note this variant is less appealing due to the lack of Bluetooth and Tough Solar. Overall, owners rate the Casio GM-2110D highly for its aesthetic appeal and comfortable fit.
The metal bezel and bracelet offer a more premium feel to the Casioak design. Reviewers noted the non-inverted digital displays improve readability.
Owners widely praise the Slow Watches O 01 for its gorgeous 24-hour dial, unique one-hand design, and conversational appeal, with many finding it a joy for daily wear and an interesting, affordable alternative. The watch's Swiss-made quality and stainless steel construction are noted, and some owners report the Italian leather band aged well. However, the watch is not ideal for precise timekeeping, with time only readable in roughly 15-minute increments, and some find the midnight at 6 o'clock position unconventional. Owners are split on the typeface, with one disliking the "0" numeral, and some consider the $300 price point high for its perceived gimmick status and reduced mechanics. Setting the watch requires a specific clockwise-only crown rotation, and battery changes may require a small flathead screwdriver. Overall, owners rate the Slow Watches O 01 highly for its unique design and conversational appeal, despite its limitations for precise time-telling.
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