Automatically deactivates the Auto EL backlight function when surrounding light is sufficient, and activates it under dim light or dark conditions.
Low-temperature resistant (-10°C)
Even temperatures as low as -10°C have no effect on this watch.
Solar Power
A solar cell provides power for operation.
Radio signal receiver (EU, USA, Japan)
In Europe or North America, in many parts of Canada and Central America or Japan - once the watch has been set to the local time zone, it receives the relevant signal ensuring that it always shows the exact time. In many countries the summer and winter time is also shown automatically.
Duplex LCD
Giving you a constant overview: Elements on the display are distinguished from one another using colour. This is achieved using different coloured layers placed on top of one another, allowing information to be displayed more clearly.
Barometer (600/1100)
A special sensor measures the air pressure (measuring range: 600/1100 hPa) and presents this on the display in the form of a symbol. This enables early detection of weather trends.
Thermometer (-10°C / +60°C)
A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C).
Digital-compass
A built-in direction sensor detecs the magnetic north.
Depth gauge to -30 m
A pressure sensor measures changes in water pressure and converts the result into a depth display. Dives down to -30 m can be displayed.
Diver's Log
Data such as dive time, water temperature and dive depth can be saved and called up at a later date.
World time function
Displays the current time in major cities and specific areas around the world.
Stopwatch function - 1/100 sec. - 100 hours
Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 100 hours.
Yacht timer
The perfect prerequisite to every regatta and yacht race: The countdown start time can be set within a period of 1 to 10 minutes, usually 5 minutes. An audible signal sounds once after every elapsed minute. For the last ten seconds before the start, the signal sounds every second.
Timer - 1/1 min. - 1 hour (with automatic repeat)
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. They then count back automatically from the preset time. The time can be set to the nearest second and up to 1 hour in advance. Ideal for people who need to take medicines every day or those who do interval training.
5 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.
Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date.
12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format.
Mineral glass
The tough mineral glass resists damages.
Resin case
The case of the watch is light and durable.
Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
Folding clasp
The watch has a folding clasp.
Battery level indicator
An indicator shows the current battery level.
Water resistance classification (10 bar)
Perfect for swimming: the watch is water resistant to 10 bar according to ISO 22810.
What’s in the box?
3 Year Warranty
User Manual
Original box
Reviews about Casio Bluetooth Sports STB-1000-1EF (6)
The perfect watch for athletes and everyone else!!!
It’s very elegant, lightweight, and you can’t help but notice how nicely it sits on your wrist. Plus, the quality is top-notch—you can’t fault the manufacturer at all. It’s the best watch ever!
sosiniak
6/15/26
100%
From the company's lineup, I've chosen the Casio Bluetooth Sports for myself. And that’s because it has a feature I really need: connectivity with an Android smartphone. On one hand, you can change songs without taking your smartphone out of your pocket, and on top of that, the watch will notify you of emails or text messages. And then there’s that very attractive price for Poles—the equivalent of €100. That’s not much for a Japanese product with top-notch quality, a warranty, and this kind of design. Something for the modern macho, the electronic macho. Which is me!
Piotr <camel67>
6/15/26
100%
From the company's lineup, I've chosen the Casio Bluetooth Sports 1000-1ef for myself, and that’s because it has a feature I really need: connectivity with an Android smartphone. On one hand, I can change songs without taking my smartphone out of my pocket, and on top of that, the watch will notify me of emails or text messages. And then there’s that very attractive price for Poles—the equivalent of €100. That’s not much for a Japanese product with top-notch quality, a warranty, and this kind of design. Something for the modern macho man—the electronic macho man. Which is me!
Piotr <camel67>
2/23/16
100%
The watch is perfect for athletes and more !!! It is very elegant, light and you can not see how nice it is in the hand. In addition, the highest quality, the manufacturer cannot be faulted, the best watch ever!
sosiniak
2/23/16
100%
I choose Casio Bluetooth Sports from the company's offer. This is because it has a function I need very much, connectivity with an Android smartphone, on the one hand, you can change songs without taking the smartphone out of your pocket, and the watch will also inform you about e-mails or text messages. And this very favorable price for Poles, the equivalent of 100 €. It is not much for a Japanese product, with great quality, guarantee and such appearance. Something for the modern macho, electronic macho. That is me!
Piotr <camel67>
2/23/16
100%
From the company's offer, I choose Casio Bluetooth Sports 1000-1ef for myself, because it has a function I need very much, connectivity with an android smartphone, on the one hand, you can change songs without taking the smartphone out of your pocket, and the watch will also inform you about e-mails or text messages. And this very favorable price for Poles, the equivalent of 100 €. It is not much for a Japanese product, with great quality, guarantee and such appearance. Something for the modern macho, electronic macho. That is me!
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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