This new GRAVITYMASTER model packages GPS Hybrid Radio-controlled Solar-powered timekeeping into a strong TRIPLE G RESIST body. It delivers unmatched accuracy, toughness, and practicality demanded by today's aviators. Virtually unlimited access to current, accurate timekeeping data required by pilots is provided by reception of both GPS satellite information and time calibration signals, as well as Bluetoothƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ªÇæ linking. This is the world's first watch* to incorporate three time information acquisition systems. To improve anti-vibration characteristics, the band connects to the watch body without screws. Both ends of the shafts that secure the band are covered with fine resin, and fine resin stoppers strengthen connections. It also adds an extra level of toughness to withstand severe cockpit conditions. The GPW-2000 GRAVITYMASTER embodies the ultimate in absolute accuracy and unmatched toughness. *As of March 2017. CASIO research. 3-way Time Sync Bluetoothƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ªÇæ-equipped GPS Hybrid Wave Ceptor Accurate timekeeping is assured by the installation of three advanced time-correction systems: terrestrial radio wave reception (Multi Band 6), GPS satellite signal reception and Bluetoothƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ªÇæ transmission. The most appropriate system is selected automatically depending on the conditions, and the correct time is displayed for the current time zone anywhere in the world. ƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷ƒ?????Ç???Ç??Ç?Çîƒ?????Ç???ƒ?????Ç???ƒ????€ù Case / bezel material: Resin / Stainless steel Carbon fiber insert Resin Band Magnetic Resistant TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant) Sapphire Glass with non-reflective coating Screw Lock Crown Vibration resistant Shock Resistant Neobrite 200-meter water resistance Solar powered LED light (Super Illuminator), Afterglow GPS signal reception: Auto receive (time information, once/day); Manual receive (position information, time information) Time calibration signal reception: Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal The latest signal reception results Time Calibration Signals Station name: DCF77 (Mainflingen, Germany), Frequency: 77.5 kHz Station name: MSF (Anthorn, England), Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States), Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan), Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China), Frequency: 68.5 kHz Mobile link (Wireless linking using Bluetoothƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ªÇæ) The auto hand home position correction Airplane mode World time 39 time zones (28 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping 1-second stopwatch, Measuring capacity: 23:59'59, Measuring mode: Elapsed time Countdown timer Measuring unit: 1 second, Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Daily alarm Low battery alert Power Saving (hands stop to save power when the watch is left in the dark) Full auto-calendar (to year 2099) Day and date display Regular timekeeping Analog: 3 hands (hour, minute (hand moves every 10 seconds), second) 4 dials (24-hour, world time hour and minute, world time 24-hour, battery), date, day Accuracy: ƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇïÇ?Çú¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇï¶ô¶÷¶ôÇï¶ô¶ݶôÇïÇ?ǯ¶ôÇï¶ô¶ݶôÇïÇ?Çñ15 seconds per month (with no signal calibration) Approx. battery operating time: 6 months on rechargeable battery (operation period with normal use without exposure to light after charge), 23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Size of case : 66ƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇï¶ô¶®ƒ?????Ç???Ç??Ç?Çîƒ?????Ç???ƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ª¶¸ƒ?????Ç??€ùÇ??Ç?Çîƒ?????Ç???57.1ƒ?????Ç???Ç??Ç?Çîƒ?????ƒ????€ùƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????¶ôÇï¶ô¶®ƒ?????Ç???Ç??Ç?Çîƒ?????Ç???ƒ?????ƒ?????ƒ?????Ç??€ùÇ??Ç?Çîƒ?????ƒ?ª¶¸ƒ?????Ç??€ùÇ??Ç?Çîƒ?????Ç???18.2mm Total weight : 120g
