1983, Casio released the world's first watch with a shock-resistant structure - G-SHOCK DW-5000C, in the field of watches created a new "tough" genre, as a symbol of shockproof watch. 2013 marks the 30th anniversary of G-SHOCK's landmark, and G-Shock, which has been evolving since its birth, enters the future with the spirit of Absolute Toughness. So a watch with low energy Bluetooth technology - GB-6900AB came into being, January 4 in Casio Lynx flagship store pre-sale. Casio G-SHOCK GB-6900AB Bluetooth watch to the classic model 6900 prototype design, dark case looks very cool. In addition to the powerful basic features G-SHOCK should have, such as 200 meters waterproof, fully automatic calendar, countdown, alarm, stopwatch (1/100 second), LED backlight, the watch's 2 o'clock display A Bluetooth logo, which is its biggest difference with the previous G-SHOCK. This low-power Casio GB-6900AB provides a reminder of incoming calls via Bluetooth, an email reminder, cell phone location, connection disconnect reminder, auto-reconnection and on-time six functions, each of which is very user-friendly Convenient and practical This new generation of G-SHOCK Bluetooth® v4.0 smart watch, it is not only the tool of time, but also an assistant in life. On January 4, a full pre-sale will take place at the Casio Lynx flagship store, followed by January 14 with the release of the Chinese limited edition and global APP apps that include "a few" MVs. As the beginning of 2013, the most powerful new G-SHOCK, hard-core fans absolutely have to own. * Mainland China iPhone 5 / iPhone 4S is required and G-SHOCK + application is installed (Casio G-SHOCK official website: http://www.g-shock.com.cn/ Casio Lynx flagship store: http: // casio.tmall.com/, Sina official microblogging @ G-SHOCK)