Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The GBM-2100-1A is Casio's slimmed-down G-Steel: a stainless steel bezel over a resin case, with analog hands plus a small digital window. It runs on Casio's Tough Solar module and pairs over Bluetooth with the Casio Watches app for automatic time correction, world time and phone finder. It is the metal-look G-Shock for people who want a rugged watch that still passes at the office. Against the larger, heavier GMW-B5000 or the resin GA-2100 'CasiOak', it trades some heft and full-metal construction for a lighter 2.5 oz case and solar charging the basic GA-2100 lacks.
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Lowest price we've seen: $217.00 on Nov 10 at CreationWatches. Tracked across 2 stores since Nov 10.
Owners rate the GBM-2100 as a good-looking, tough daily watch that bridges G-Shock durability and dressier styling. Most praise the solar charging and Bluetooth timekeeping; the recurring complaints are the fiddly app and the small digital display.
