Japan Red Cross Society 130th Anniversary Commemorative Item G-SHOCK SILENCER SILENCER GW-400J Vibration Main Features ・Radio-controlled watch ・Tough Solar ・Vibration alarm ・Thermo sensor ・Tide graph ・Moon data The vibration function allows for silent time signals and alarms without disturbing others. It notifies you with a vibration every time the time signal sounds. It has been used sparingly, and there are no noticeable scratches on the glass surface. It has been used only a few times. It is currently working without any problems, but we cannot be responsible for battery depletion after shipping. There is no box or instruction manual. Please note that it is also listed on other sites, so it may be sold out. Manufacturer's Description G-SHOCK The G, equipped with radio wave reception and Tough Solar, has been upgraded with a sensor, evolving into the "SILENCER." Equipped with a thermo sensor, it can measure temperature. It also features a vibration alarm and a timer for yacht racing. You can check the time even in situations where it is difficult to hear sounds. In addition, it displays tide information with tide graphs for 100 points in Japan and 100 points overseas. It is The G that supports various marine sports, from surfing to yachting.