10
CAUTION
– Regarding diving at high altitudes or in fresh water –
• If you intend to use this watch for diving in a high place or in fresh water, be sure to
have a special education in safe diving beforehand.
• Do not use the depth meter function of this watch in a high place 4,000 m (13,120
ft) or more above sea level, because the watch gives incorrect measurement of
depth in such a place.
• This watch indicates a depth based on the specific gravity (1.025) of seawater.
Therefore, if the watch is used in fresh water, the real depth is 2.5% deeper than the
indication of the watch.
Example: 20 m (65 ft) (indicated depth) x 1.025 = 20.5 m (67 ft) (real depth)
When the watch is shifted to the dive mode, the pressure sensor regards the
ambient pressure as that on the sea level (0 m/0 ft in depth or altitude). If the
watch is shifted to the dive mode in a high place, it regards the pressure on the
surface of the water as that on the sea level (namely 0 m/0 ft in depth/altitude). In
short, the watch always regards the surface of the water as the sea level (0 m/0 ft)
except in a place 4,000 m (13,120 ft) or more above sea level. Therefore, you are
advised not to use the depth meter function of this watch in a high place 4,000 m
(13,120 ft) or more above sea level for the reason that the watch gives incorrect
measurement of depth in such a place as mentioned previously.
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