Tissot SAILING-TOUCH User Manual - Page 16

SAILING-TOUCH * TIDE The minute hand indicates the actual state of a tide at a chosen location and the hour hand shows the tendency to low or high tide. 1 sec. Activate glass Activate tide Low tide High tide Hour hand indicates the tendency to low or high tide Minute hand moves between 9 o'clock and 3 o'clock and indicates the actual state of the tide (amplitude) Display: time of next high tide Display: time of next low tide SETTING > TIDE For your SAILING-TOUCH to indicate correct tidal information, you need to enter the exact time of the next high tide at your location. Please visit one of the websites listed on page 16 for information about tidal times. 2 sec. or or Tide display Setting mode : time forward : time backward Validate setting SETTING > TIDE Tides Tides are the rise and fall of sea levels caused by the combined effects of the rotation of the Earth and the gravitational forces exerted by the Moon and the Sun. The interval between two high tides is of approximately 12 hours and 25 minutes. During high tide, the sea level rises because the side of Earth facing the Moon (nearest it) is attracted by the gravitational force of the Moon. Combined with the centrifugal force caused by the rotation of the Earth, oceans stretch into an ellipse with the Earth in the center. The ellipse has two peaks; one nearest the Moon and one farthest from it (at the antipodal point). As the Earth spins on its axis once a day and the Moon needs longer, about 30 days to rotate around the Earth, the ellipse stays aligned with the Moon meaning that there are two high and two low tides in one day. Description of function Upon activation of the Tide function, the hands of your SAILING-TOUCH indicate actual tidal information. The minute hand moves between 9 o'clock and 3 o'clock and indicates the actual state of the tide (amplitude). The hour hand points to 9 o'clock ("L") or 3 o'clock ("H"). If it points to "L", it means that the actual tidal tendency is to low tide and if it points to "H" it is to high tide. The LCD display indicates the time of the next high and low tides. Note For best accuracy of the tide function, set tidal times as frequently as possible. For your safety, always carefully plan boat trips with accurate information and tools that meet your needs. Useful links www.tides.info www.sailwx.info www.tissot.ch 16/16 147_EN