Casio Analog GST-B100GA-1AER

Product Information

The daily alarm reminds you of events that recur every day, by emitting an audible signal at the set time.

months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Technical amendments and errors excepted. The sizes in figures do not correspond to the original sizes. Smart Access makes it easy to operate multi-function watches. Simply pulling out and rotating the crown provides intuitive control over all functionsThis watch is equipped with Bluetooth® that lets it connect with a smartphone at the press of a button, and acquire time information from an internet time server. The result is accurate timekeeping no matter where in the world you happen to be. Other functions include a solar powered battery with up to two years power reserve, high brightness LED light illumination, and dual dial World Time. Smart Access makes it easy to operate multi-function watches. Simply pulling out and rotating the crown provides intuitive control over all functions.

months on rechargeable battery (operation period with normal use without exposure to light after charge) Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power) Layer Guard Structure (boasts a double-layer bezel construction of stainless steel and resin or resin and fine resin which delivers the hard, sleek beauty of metal while retaining the impact absorption of resin.) Typical dense polyurethane material. It is surely bound to serve for a long time (first meant to write “forever”, but refrained).

The watch is connected to an Internet-based time server automatically and the time corrected four times a day. When crossing between time zones, it switches to local time immediately with the touch of a button.

Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810. The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions.

Model Comparison

Regulations governing time around the world, including changes in time zones and Daylight Saving Time starting/ending dates of are entered into the watch’s internal data via the app. The correct time is always displayed based on the latest time information. Misplaced your smartphone? All it takes is the push of a button on your watch and the smartphone sounds an alarm. Just the touch of a button on the app switches the times displayed on the main dial and inset dial. This function comes in handy when traveling internationally, for example. Invisible solar cells in the watch convert light into energy and supply all functions. A rechargeable battery provides the necessary capacity for operation in poor light conditions.

Approximately 22 months on full charge, without further exposure to light and with the power save function enabled

Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power. After the Alert: The following operations are stopped to save power: all hand movement (excluding the day indicator), Bluetooth connection, if applicable, and alarms 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. The time can be set to the nearest minute and up to 24 hours in advance. Ideal for people who need to take medicines every day or those who do interval training.