


PRODUCT DETAILS
The Casio F-B100W-1B digital watch combines classic style with modern technology, featuring Bluetooth® Mobile Link for automatic time correction and easy settings configuration via your smartphone. A built-in accelerometer automatically tracks daily steps and displays progress directly on the multifunction LCD screen, supporting active daily routines and health management.
Built with a slim 8.8 mm profile and weighing just 26 g, the watch incorporates a lightweight resin case and a vented bio-based resin band designed for enhanced airflow and all-day wrist comfort.
Practical timekeeping features include a 1/100-second stopwatch with a 200-lap memory, a countdown timer, dual time display, 5 daily alarms, and an LED backlight for clear visibility in low light.
Key Features
| Case size (L× W× H) | 41.9 × 38.1 × 8.8 mm |
| Weight | 26 g |
| Case and bezel material | Resin |
| Band | Bio-based resin band |
| Glass | Resin Glass |
| Compatible band size | 145 to 215 mm |
| Water resistance | Water Resistant |
| Time adjustment | Bluetooth: Connects to a smartphone and automatically adjusts the time |
| Power supply and battery life | Approx. battery life: 2 years on CR2016 |
| Sensor feature | Step Count Measurement: Step count display range : 0 to 999,999 steps Step goal progress display (step count goal setting range: 1,000 to 50,000, 1,000-step increments) Step reminder Step count graph |
| Smartphone Link feature | Mobile link (Wireless linking using Bluetooth®) |
| Apps | CASIO WATCHES |
| App connectivity feature | Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Life log data, Time & place, Phone finder |
| World time | Dual time (home time swapping) |
| Stopwatch | 1/100-second stopwatch (Up to 200 lap records) |
| Timer | Countdown timer (up to 60 minutes) |
| Alarm/hourly time signal | 5 daily alarms, Hourly time signal |
| Light | LED backlight (Green) |
| Calendar | Full auto-calendar (to year 2099) |
| Accuracy | ±15 seconds per month (with no mobile link function) |
Highlights
- Water resistant
- Keeps accurate time
- Easy to operate via smartphone
- Tracks step count
- Displays dual city time
- Classical design
Downloads
Frequently asked questions
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PAYMENT METHODS

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SHIPPING & RETURNS
DELIVERY
- We aim to dispatch all in-stock items from our warehouse within 2-5 business days. An email will be sent to you which will include all your tracking information once your order has been handed over to our courier partner.
- If an item is out of stock, we will email you as soon as possible to arrange a full refund or exchange.
- FREE shipping for all orders to any South African address.
- International delivery to Zimbabwe, Namibia and Botswana is available for some brands. Please contact us for a shipping quote.
- Easy 7 days returns and exchanges
RETURNS
If you do not like the product you can return it within 7 days, assuming the item is not worn, scratched or damaged in any way, and includes all the original packaging.
Please contact us for any returns or exchanges
WATER RESISTANCE
Please check the marking on the back of your watch case and refer to the following table to confirm the degree of water resistance of your watch and the preferable conditions of use. A watch’s water resistance is not permanently guaranteed. It is affected by the ageing of gaskets or deformation of watch parts due to accidental shock. To preserve a watch’s water resistance as long as possible, please follow the precautions below:
- Wipe off moisture, sweat or dirt with a soft dry cloth after removing it from the wrist in order to increase the durability of the case back, gaskets and band.
- After using a water resistant watch in ocean water, wash it in fresh water and dry it with a soft cloth.
- Do not wash a water resistant watch while the crown is pulled out.
- Do not operate the crown or press a button when the watch is wet.
- A periodic overhaul service is recommended to check the water resistance of the watch regularly to ensure it’s functionality.
〇:OK, ✕:Not OK
Type of water resistance | For saturation diving | For scuba diving | Enhanced water resistance for | Water resistance for | Non-water resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Water resistance | Professional Diver's Watch | Diver's watch | 20 | 10 | 5 | 3 | ||||||||
Usage example | Accidental splashes and Contact with rain | 〇 | 〇 | 〇 | 〇 | 〇 | 〇 | × | ||||||
Swimming, Yachting, | 〇 | 〇 | 〇 | 〇 | 〇 | × | × | |||||||
Skin diving | 〇 | 〇 | 〇 | 〇 | × | × | × | |||||||
Scuba diving | 〇 | 〇 | × | × | × | × | × | |||||||
Saturation Diving | 〇 | × | × | × | × | × | × | |||||||
REVIEWS
Casio Classic Black Dial Digital Watch F-B100W-1BDF
WHY BUY FROM US?
- AUTHORISED ONLINE DEALERThe Watch Boutique is an authorised online stockist for all brands. This includes a full international warranty.
- FREE AND FAST DELIVERYShipping is free for all orders in South Africa. We dispatch all orders within 2-5 business days.
- SECURE PAYMENT OPTIONSIncluding Buy Now, Pay Later plans with PayFlex and Pay Just Now.
- AFTER-SALES SERVICEWe have a full on-site watch repair workshop to take care of all after-sales needs.
