Victorinox ST-4000 CHRONO User manual

ST-4000 CHRONO

In 1897 the Original Swiss Army™Knife was created in the small village of Ibach,
Switzerland. Since that time, Victorinox®has become known in more than
100 countries for precision, quality, functionality and versatility.
This century old heritage has been extended to Swiss Army Watches and Timepieces.
Each reflects the ingenious design and outstanding durability we’ve come to stand
for over the years. Uncompromising craftsmanship makes these watches worthy
to carry the cross and shield emblem that symbolizes the legend of Victorinox and
the Swiss Army®Brand.
Whether you’re going around the corner or around the globe, this specially designed
Swiss Army Watch—its choice of materials and technology—will make sure that
you’re equipped for life’s adventures. No matter what those adventures might be.
QUALITY FEATURES—ST-4000 CHRONO
Made in Switzerland.
Precision Swiss Movements.
Individually tested for 30M (100 feet) water resistance.
Solid stainless steel cases.
Swiss Army®Brand Watches are covered by a three-year limited warranty. Only our
watches are authorized by the Swiss government to carry the name “Swiss Army.”

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TABLE OF CONTENTS
Setting the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Using the ST-4000 Altimeter and Barometer . . . . . . . . . . . . . . . . . . . . . . . 4
Function/Setup Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Digital Display Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjusting the Altimeter and Barometer . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Altimeter and Barometer Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Stopwatch Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Sport Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ST-4000 Chrono Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

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THREE HAND ANALOG QUARTZ TIME SET INSTRUCTIONS
Setup
Buttons
Start/Stop
Button
Crown
Reset
Button
Function
Buttons
1Clock
Function
(Alarm CHR)
2Altimeter
Function
(Alti Baro)
3Sport
Function
(Run)
0 1
NOTE: The ST-4000 Chrono
has a pull-out crown with
two positions (0 and 1).

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THREE HAND ANALOG QUARTZ
SETTING THE TIME - Pull Out Crown
A. Pull out the crown to position (1).
B. Rotate the crown away from you until the desired time is set.
C. Push in the crown, returning it to position (0). The time is now set.
NOTE: Never operate the crown when the watch is wet.

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USING THE ST-4000 ALTIMETER AND BAROMETER (ALTITUDE)
The ST-4000 shows altitude below or above sea level from -4,000 feet to
+30,000 feet in 5-foot increments.
ALTIMETER AND BAROMETER DETAILS
How the Altimeter Works
The ST-4000 measures altitude by detecting differences in air
pressure and displaying this information as altitude above sea level.
The ST-4000 works the same way an aircraft altimeter does.
Moving Barometer
There are two kinds of barometers: fixed location and moving location.
Moving barometers are designed to be used at varying elevations.
The ST-4000, like an aircraft altimeter, contains a moving location barome-
ter. Its reading does not move until you set it by adjusting the
altitude in the altimeter display.

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Altitude Offset
A weather change will produce a change in barometric pressure that
causes an offset in the displayed altitude from the actual altitude. This offset
is consistent at any altitude, so, if you start a hike with the altitude reading
50 feet too high, it will read 50 feet too high at any elevation on your hike.
You remove the offset by adjusting the altitude.
When to Adjust Altitude
Adjust the altitude when you want precise altitude readings, such as before
hiking or climbing, or when you want to update the Sea Level Barometer.
Adjust at a known altitude such as at the sea side, a marked summit or pass,
or a location with an altitude reference on a map such as a lake. Home or
office make convenient adjustment points after learning their elevations
from a topographic map.
Adjust once a day when hiking, climbing, or when following weather patterns.
You can also adjust altitude in the barometer. Adjust display by entering a
current, local barometer reading from a weather report or airport weather
service. When you enter the barometer reading, the altitude is also adjusted
in the altimeter.

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Effects of Atmospheric Pressure Changes
A change in atmospheric pressure will make the displayed altitude different
from the known altitude of a landmark. The ST-4000 can be
adjusted so that it displays the same altitude as the landmark. Minor atmos-
pheric pressure changes may cause the displayed altitude to vary from the
actual altitude by 50 feet. With the arrival or departure of a weather front,
displayed altitude can change 100 to 200 feet, and a storm can cause a
change of more than 200 feet. Wind, rain, snow, and humidity do not affect
altimeter readings.
Barometer-Altimeter Synchronization
Synchronization (the relation between altitude and sea level barometer) is
set at the factory. To ensure barometer accuracy you can check it after a
year or two and correct minor drift if necessary. You must know your current
altitude and must get the current sea level barometer from a local airport or
weather broadcast to make this adjustment.
You can also synchronize the thermometer if it reads consistently high or
low over a range of temperatures.

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Thermometer Accuracy
The ST-4000 measures the ambient air temperature with a sensor inside its
case. When the watch is worn against your skin, temperature readings will
be affected significantly. Direct sunlight can also cause the
ST-4000 to give high readings. For accurate readings, remove the watch
from your wrist and place away from direct sunlight.
Display
The Altimeter and Thermometer revert to the Clock 10 minutes after the last
time a button is pressed.
NOTE: The analog and digital movements of this watch
operate independently. Please set each individually to
ensure they are kept in sync.

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Setup
Buttons
Start/Stop
Button
Crown
Reset
Button
Function
Buttons
1Clock
Function
(Alarm CHR)
2Altimeter
Function
(Alti Baro)
3Sport
Function
(Run)