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.
• Don't 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% less than the indication of the watch.
Example: 20 m (65 ft) (indicated depth)×1.025 = 20.5 m (67 ft) (real depth)
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<During diving>
• Avoid quick ascending, otherwise you may suffer from submarine sickness or
a functional disorder in some way. Whenever you ascend in water, carefully
keep a safe speed.
• Don’t disturb any push buttons or the crown except button B (for knowing the
memorized maximum depth) throughout the dive, otherwise the watch may
fail in water-resistance.
<After diving>
• After confirming that the crown is screwed down tightly, wash out seawater,
mud, sand, etc. sticking to the watch, with fresh water. Then, wipe off water
and moisture with a dry soft cloth.
• Neither remove the sensor cover nor pick at it with a sharp-point in order to
remove particles of dust, etc. collected in the sensor. If the sensor part is
packed with dust, etc., wash it out with fresh water. In case it is difficult to
wash out dust, consult the nearest Citizen Service Center about the trouble.
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When the watch is shifted to the diving 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 diving 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.
