A luminous coating provides long-term illumination in the dark after only a short exposure to light. 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. In the Flight Log memory GPS precise location with time and date, can be opened by pressing a button. This function can e.g. be helpful for pilots much to their stakes to document and display it on maps later. Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, lap time, split time, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes)

Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Thanks to its extremely high level of durability, resin is the ideal material for watches. Combining resin with carbon—a particularly robust material—creates a casing that is even more stress-resistant and offers even greater protection against external influences, resulting in an extremely high level of durability.

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Daily Alarms: Each will sound every day at the time you set, Hourly time signal: The watch beeps every hour on the hour Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.

Green with inverted LCD display, based on the color scheme of DW-5600B-3V from 1987. Japan model is GA-B2100-3AJF (22,000 yen). Approximately 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Alternatives: The deluxe GM-B2100 is a full metal version. The more affordable GA-2100 offers the same style but without solar power and Bluetooth.The button tones on the mode button can be switched off for discreet operation. Pre-set alarm or timer functions remain active. Misplaced your smartphone? All it takes is the push of a button on your watch and the smartphone sounds an alarm. Dual Illuminator: Separate illumination of the analogue and digital components ensures optimum readability in low light conditions., Selectable illumination duration (1.5 seconds or 3 seconds), With afterglow Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.

With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date. On a full charge, the watch can operate for about seven months with normal use without further exposure to light, or up to eighteen months when stored in darkness with power-saving enabled. Regularly exposing the watch to bright light will provide maintenance-free operation for many years. We suggest keeping Tough Solar watches charged up as much as possible and not letting them go to low often, for the health and longevity of the rechargeable battery. The Bluetooth link provides enhanced features through the Casio smartphone app, such as automatic time adjustment (4 times a day), easy watch setting, approximately 300 world time cities, a time & place memory log function, a reminder function, and the phone finder function. (The watch can also be adjusted and operated without using Bluetooth at all.) One notable difference from the GA-2100 is that the subdial indicator on the GA-B2100 shows the function modes and battery level rather than the day of week. The day of week can be displayed on the LCD display along with the seconds. (The LCD display can also display the date with seconds or the hours and minutes with seconds.) 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. 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 The time can be set to the nearest second and up to 24 hours in advance.Powered by any light source, saving time and money as no battery change required- known as TOUGH SOLAR CASIO WATCH+ World Time lets you select from among approximately 300 cities as the World Time City, Displays the current time in major cities and specific areas around the world 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.