Casio F-B100W - the cult digital watch makes a connected comeback

At PSB Watches, we closely follow new Casio releases, and the F-B100W is worth paying attention to. This digital watch embraces the aesthetic codes of 1980s Casio models – its slim case, rectangular LCD screen, and instantly recognizable silhouette – while adding a layer of technology not necessarily expected on this type of watch: Bluetooth connectivity and integrated activity tracking. We now offer this model in three colors, and here we explain everything you need to know before making your choice.

Summary

1. What is the Casio F-B100W?
2. Vintage design, modern manufacturing
3. Bluetooth and the CASIO WATCHES app
4. Integrated pedometer, a new feature in this format
5. Full technical specifications
6. The three colors available at PSB Watches
7. F-B100W or F-91W: what are the differences?
8. Frequently Asked Questions

What is the Casio F-B100W?

The F-B100W belongs to the Casio Standard digital watch family, which gave birth to iconic references such as the F-91W. It embodies the same spirit: a thin and light resin case, a strap made of the same material, and an LCD display legible in all circumstances. The major difference lies in its module number 3589, which for the first time on this type of case includes a mobile link function via Bluetooth.

Concretely, the watch remains fully autonomous and usable without a smartphone nearby. But once paired, it gains additional functions: automatic time adjustment, easy configuration from the application, and activity data transfer to the phone.

Vintage design, modern manufacturing

The case measures 41.9 x 38.1 x 8.8 mm and weighs only 26 grams, making it a particularly discreet watch on the wrist. The strap features the split design of the F-91W on its visible side, but its inner side is perforated with slits designed to improve ventilation and wearing comfort, a detail thought for prolonged sports or daily use.

Another notable point: the resin components of the strap incorporate a portion of bio-based resin, derived from renewable organic resources. Casio indicates that this choice aims to reduce the environmental impact of the product, without affecting the strap's resistance or comfort.

The crystal is made of resin, the classic screw-down crown, and the whole maintains sufficient water resistance for daily use (splashes, rain, hand washing).

Bluetooth and the CASIO WATCHES app

The Mobile Link function allows you to pair the watch with a compatible smartphone via the free CASIO WATCHES app, available on iOS and Android. Once connected, the watch benefits from several concrete advantages:

What the app connection enables:

- Automatic time adjustment, without ever having to manipulate buttons
- Access to approximately 300 cities for world time
- Transfer of activity data (life log) to the phone
- "Phone finder" function to locate your smartphone via the watch
- Automatic update of time zones and daylight saving changes

It is important to note that Bluetooth is only used for these convenience functions. The watch remains, in its basic use (time, stopwatch, alarms), completely independent of any pairing.

Integrated pedometer, a new feature in this format

The F-B100W features a motion sensor that automatically counts steps, with a display that can go up to 999,999 steps. The user can set a daily goal, between 1,000 and 50,000 steps, and the watch alerts them with an audible signal and a dedicated display if activity is deemed too low during the day.

A graph on the LCD screen tracks the evolution of the number of steps hour by hour, over the last seven hours, divided into six levels. Combined with the app's life log function, this allows for simple activity tracking without the need for a full-fledged smartwatch.

Full technical specifications

Beyond Bluetooth and the pedometer, the F-B100W retains all the features that have made Casio digital watches famous:

Stopwatch: 1/100-second precision for the first hour, then to the nearest second, with storage of 200 lap times

Timer: Countdown timer adjustable from 1 second to 60 minutes

Alarms: 5 independent daily alarms, plus an hourly time signal

Backlight: LED with adjustable illumination duration (1.5 or 3 seconds) and afterglow function

Dual Time: Simultaneous display of local time and home time

Calendar: Automatic and perpetual calendar until 2099

Battery Life: CR2016 battery, approximately 2 years, with low battery alert and power saving mode

Accuracy: ±15 seconds per month when not using Bluetooth

Manufacturing Origin: Thailand

The three colors available at PSB Watches

We have selected three references from this new collection, to cover the most common uses: a sober all-black model, a more contrasted black and blue version, and a more assertive green color. Find all 3 colors here.

Casio Digital Watch F-B100W-1B Black Unisex Bluetooth
The most classic color in the collection: entirely black case and strap, for a discreet watch that matches any outfit. This is the natural choice if you are looking for aesthetic continuity with the best-selling Casio Standard models.

Casio Digital Watch F-B100W-1A Black Blue Unisex Bluetooth
A variation of the black model, with touches of blue on the bezel and dial that break up the overall sobriety. A good compromise for those who want a discreet watch at first glance, but with a color detail that distinguishes it.

Casio Digital Watch F-B100W-3A Green Unisex Bluetooth
The most striking color of the three, with a dark green case and strap that evokes certain military or outdoor pieces. An option for those who want to move away from usual shades while maintaining the sobriety of the digital format.

F-B100W or F-91W: what are the differences?

The comparison is inevitable, as the F-B100W visually adopts the codes of the F-91W, one of the best-selling models in Casio's history. The outer strap is also deliberately identical. But the two watches do not have the same positioning.

The F-91W remains a 100% mechanical watch in its operation, without any connectivity, with an older module and more limited functions (no pedometer, no such comprehensive dual time zone). The F-B100W, on the other hand, is for those who appreciate vintage aesthetics but want a watch that minimally tracks their daily activity, without switching to a classic smartwatch with a touchscreen and notifications.

Frequently Asked Questions

Does the Casio F-B100W work without a smartphone?
Yes. Bluetooth is only useful for automatic time adjustment and step data transfer. All other functions (time, stopwatch, alarms, calendar) can be used without any pairing.

Do I need to change the battery often?
No, the advertised battery life is approximately 2 years with a CR2016 battery, under normal use without excessive Bluetooth usage.

Is the watch waterproof?
It is water-resistant (splashes, rain, hand washing), but is not designed for swimming or diving.

What is the difference between the F-B100W-1A and the F-B100W-1B?
Both are black versions, but the 1A includes touches of blue on the bezel and dial, while the 1B remains entirely monochrome black.

Is the CASIO WATCHES app paid?
No, it is free and available on the App Store and Google Play.

The three colors of the Casio F-B100W are now available at PSB Watches. If you are hesitating between several models, our team remains available to guide you towards the one that best suits your use.