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Casio is releasing a new line of digital watches in Japan this month. The LF-40W series includes three models: the black LF-40W-1AJF, the navy LF-40W-2AJF, and the gray LF-40W-8AJF. All three are priced at ¥4,400 ($28) and are currently available for pre-order ahead of their November 2026 shipping date.
Design Details
The LF-40W series features a distinctive vertically oriented LCD that separates the watch’s information into two sections. The top half functions as a standard digital clock, showing the current time in numbers. The bottom half contains three rows of horizontal bars that change based on the time and the watch’s current mode.
These bars serve as a quick visual reference for the watch’s background settings. The top row indicates whether the alarm, hourly time signal, button tones, and daylight saving time are turned on or off. The middle and bottom rows act as a visual timer, filling in to track the passing seconds in 10-second and one-second intervals. This setup allows the user to see multiple pieces of information at a glance without needing to press buttons to navigate through menus.
For the exterior, the watch has a basic rectangular resin case measuring 37.8 x 33.7 x 8.6 mm, and it weighs 23 grams. The band is made from biomass plastic, a material sourced from renewable organic resources that Casio has been using recently to reduce its reliance on standard plastics. The strap is designed to fit wrist sizes between 125 and 200 mm.
Inside, the LF-40W comes with a standard set of digital features. It includes a multi-time function to save four specific cities, plus a broader World Time mode that tracks 48 cities across 31 time zones. It also has a 1/100-second stopwatch, a 24-hour countdown timer, and five alarms that can be programmed as daily or one-time alerts.
The watch is powered by a standard battery that lasts about three years. It is rated for basic daily water resistance, has a timekeeping accuracy of ±30 seconds per month, and includes an amber LED backlight that stays on for either 1.5 or 3 seconds when activated.
In related news, Casio has recently launched a matching G-Shock and Baby-G watch pair with custom LED backlights, alongside two new retro LA680WEM digital watches featuring mesh bands.
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