Casio looks set to bring back one of its most recognizable vintage silhouettes with a modern twist. New registration filings spotted in Asia point to an upcoming model called the Casio F-B100W-1A, a watch that appears to revive the iconic F-100 case while adding a few practical smart features. If the leak is accurate, this could be an easy hit with fans of classic Casio digital watches who want retro styling without giving up modern conveniences.
The original Casio F-100 debuted in 1978 and made history as the brand’s first watch with a full plastic case. That design language went on to influence some of Casio’s most legendary and affordable watches, including the well-known F-91W. Now, the rumored F-B100W aims to capture that same compact, utilitarian vibe—while quietly updating what the watch can do day-to-day.
The biggest clue is in the model name itself. The “B” designation typically signals Bluetooth, which suggests the Casio F-B100W will be able to connect to a smartphone for syncing through the Casio Watches app. For many buyers, that’s the sweet spot: the watch still looks like a classic digital Casio, but you get better tracking and easier setup without stepping up to a full smartwatch.
Another standout feature mentioned in the leak is a built-in step tracker. It’s expected to share the same step-counting approach found in Casio’s ABL-100 series, including a dedicated progress bar at the top of the LCD that gives you a quick visual of activity as the day goes on. It’s a simple feature, but it’s the kind of everyday upgrade that makes a retro digital watch feel more useful without changing the formula.
A leaked low-resolution image also hints that Casio is sticking close to the original F-100 layout, including the signature four-button arrangement that longtime collectors will recognize immediately. If Casio follows the same direction as its other recent updates, the internals may be based on the electronics used in the newer step-tracking models, updated to fit this classic case style.
In terms of size, early expectations point to compact proportions—around 41.6 x 37.9 x 8.2 mm—keeping it slim and easy to wear, especially for anyone who prefers smaller digital watches instead of oversized cases.
Unlike some higher-end models in Casio’s lineup, the F-B100W is rumored to skip solar charging and instead use a standard battery with an estimated two-year life. That keeps things simple and affordable, and it matches what fans expect from a straightforward Casio digital watch. Core features should remain intact too, including a stopwatch, daily alarm, calendar, and LED backlight.
As for price and timing, early chatter places the Casio F-B100W somewhere between $70 and $100, with a possible release window in Summer 2026. Casio hasn’t officially confirmed the watch yet, so details could shift before launch, but the overall picture is clear: a retro-inspired digital Casio bringing Bluetooth and step tracking to a classic plastic case—without losing the minimalist charm that made the original design so popular.
