Hamilton Watch - Bezel Calculation Functions; Calculating Time (E.T.O.); Calculating Distance to Cover; Calculating Speed

6 © 24.06.2013 – HAMILTON INSTRUCTION MANUAL 7
Recommendations
Like all micro-mechanical precision instruments, your Hamilton Khaki E.T.O. chronograph should be checked at least
once every two years. Entrust your watch only to an authorized Hamilton agent. To keep your watch water-resistant,
make sure that its sealing features are tested at every check-up.
The water-resistance of your watch is  ATM =  meters =  feet.
Your Khaki E.T.O. is equipped with a quartz movement. The electrical energy of the battery makes the quartz at the
interior of the movement oscillate , times per second. This high frequency gives great accuracy.
After  to  months, according to the extent to which the chronograph is used, a reduction of battery charge could
result in the watch stopping. The replacement battery should be of the type Renata  (SR  SW).
Five basic rules for maintaining the water-resistance of your watch
. Have your watch checked regularly.
. Do not move the crown when you are in water.
. Rinse o your watch after having been in the sea.
. Dry your watch whenever it gets wet.
. Have your watch checked for water-resistance by an authorized Hamilton agent each time the case is opened.
Calculation of speed
Ex. Distance to cover:  miles
Time available:  hours
. Turn the exterior rotating bezel () so that the value
 (a tenth of  miles) is facing : on the interior
xed bezel ().
. Read the speed value on the exterior rotating bezel
() facing the red arrow = . mph.
Adjustment of time zone and date
With the crown (D) pulled out to its intermediate position
(), the hours hand can be adjusted forwards or backwards
without aecting the settings of the minutes and seconds
hands. Correction of the date occurs each time the hours
hand passes  o’ clock midnight.
NB: The crowns (D) and (E) are screwed down to guaran-
tee optimal water-resistance. They have to be unscrewed
to access their respective functions. Make sure that they
are re-screwed down after any operations using them.
Setting the time
When the crown (D) is in position (), all the watch hands
– including the seconds hand – stop, and the hours and
minutes hands can be adjusted as desired.
Readjustment of the chronograph
(If the hands are not exactly on zero.)
When a chronograph hand is turning, press button (A) to
stop the chronograph, then press button (B): the hands
return to their starting position. If the hands should not
return precisely to zero, each hand can be set to the zero
position as follows:
-minute counter
With crown (D) in position : press button (A)
-second counter
(white hand – split-seconds hand)
With crown (D) in position : press button (A)
-second counter
(red hand – sweep seconds hand)
With crown (D) in position : press button (B)
Remark: The hands may be advanced more rapidly by
maintaining pressure on the button for more than one
second.
Important: Do not leave the crown in position  for more
than  minutes, as this could result in interference with
the timekeeping function.