Eterna 1948 Manuel utilisateur
USER MANUAL
ETA 7751
1
1948 Moonphase Chronograph
Tangaroa Moonphase Chronograph
1
2
TABLE OF CONTENTS
3 1948 Moonphase Chronograph
Tangaroa Moonphase Chronograph
9 Important Advice
ENGLISH
2
A
9
BC
3
4
11
13
B.
5
10
6
12 7
2
A.
8
1
3
1. DISPLAY – FUNCTIONS
WATCH
1 Hour hand
2Minute hand
3Small seconds hand
424-hour hand
5Date hand
6Day indicator
7Month indicator
8Moon phase
9Setting crown
10 Rapid day correction push-
button
CHRONOGRAPH
11
Seconds hand
12
30-minute counter
13
12-hour counter
A.
Start/stop push-button
B.
Reset push-button
ENGLISH
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2. SETTING
2.1 GENERAL POINTS
Your watch oers one waterproofness assured until 30
m (3 bar) of depth. It has an automatic mechanical move-
ment, for which the winding, rapid date correction and
timesetting operations are performed by means of the
3-position crown 9 which has 3 positions :
ARest and manual winding position
BRapid moon phase, date and month correction
position
CTime-setting position with stop seconds and
date change at midnight
NOTES
Oncethesettingiscomplete,alwayspushthecrown
back in against the case to safeguard the watch's
water resistance. Never operate the crown underwater
or when it is still wet.
2.2 WINDING
CROWN 9 IN POSITION A, NOT PULLED OUT
Your watch has an automatic mechanical movement
which is wound by the motion of your wrist when you
are wearing the watch. It is therefore not normally neces-
sary to manually wind the watch. However, if your watch
should stop, simply turn the crown 9through a few turns
ENGLISH
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5
clockwise to restart it. When fully wound, your watch has
a power reserve of approximately 40 hours.
NOTE
There is no end of winding stop. A protective mecha-
nism prevents excessive winding of the movement.
2.3 SETTING THE TIME
CROWN 9IN POSITION C, PULLED OUT
Pull the crown 9out two notches to position C. The small
seconds hand 3will stop. Turn the crown in either direc-
tion to set the time. When the hour hand passes the 12
o'clock position, you will see whether it is indicating mid-
night (the date changes) or midday (the date does not
change). Check that the date set previously has not chan-
ged. Then push the crown 9back into the rest position A.
The small seconds hand 3will restart. The position of the
24-hour hand is corrected automatically during this set-
ting.
NOTE
For a time setting accurate to the second, we re-
commend pulling the crown out to position C
when the small seconds hand 3is at precisely 12
o'clock, and pushing it back in to synchronise with
an ocial time signal.
ENGLISH
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2.4 RAPID DAY CORRECTION
To correct the day, simply press the push-button 10 at 10
o'clock repeatedly. Each press moves the indicator one-
day forward.
NOTE
During this operation your watch continues to run
normally, hence the time does not need to be corrected.
IMPORTANT
Never correct the day between 9:30 p.m. and 2:00
a.m. The movement is in the date change process,
and could be damaged.
2.5 RAPID MONTH AND DATE CORRECTION
CROWN
9
PULLED OUT TO INTERMEDIATE POSITION
B
Pull the crown
9
out one notch to position
B
. Then turn it an-
ti-clockwise until the correct month appears in the window
7
. Each turn of the date hand
5
moves the month display one
position forward. Keep turning the crown until the correct
date is indicated by the date hand
5
. Then push the crown
back into the rest position
A
.
NOTE
During this operation your watch continues to run
normally, hence the time does not need to be corrected.
ENGLISH
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7
IMPORTANT
Never correct the date between 3:00 a.m. and 4:00
a.m as this would damage the movement.
2.6 MOON PHASE CORRECTION
CROWN 9IN INTERMEDIATE POSITION B
Pull the crown 9out one notch to position B. Then turn
it clockwise to modify the moon phase display 8. This
setting has no impact on the date display. Then push the
crown back into the rest position A.
IMPORTANT
Never correct the moon phase between 3:00 a.m.
and 5:00 a.m
as this would damage the movement
.
ENGLISH
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3. CHRONOGRAPH FUNCTIONS
With the chronograph you can measure times of up to
12 hours.
3.1 STARTING THE CHRONOGRAPH
Pressing push-button A. starts the chronograph central
seconds hand 11. It completes a full turn of the dial in
60 seconds. The minute counter 12 at 12 o'clock and the
chronograph hour counter 13 at 6 o'clock record the time
elapsed since starting.
3.2 STOPPING THE CHRONOGRAPH
Pressing push-button A. again stops the chronograph
central seconds hand 11 and the chronograph counter
hands 12 and 13 , enabling you to read the elapsed time.
3.3 RESETTING THE CHRONOGRAPH
Pressing push-button B. resets the chronograph, rea-
dying it for a new timing operation.
3.4 SUCCESSIVE TIMING OPERATIONS (LAP TIMES)
To measure successive times, you need only activate and
pause the chronograph at will using the push-button A.
at 2 o'clock. The corresponding hands are not reset, but
restart directly from their stop position. The chrono-
graph is reset using the push-button B. at 4 o'clock.
ENGLISH
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IMPORTANT ADVICE
WATER RESISTANCE
The waterproofness of your watch is assured according
to specification quoted in the paragraph 2.1 majorities.
Nevertheless, it is important to understand that repea-
ted handling of the case, ageing of the sealing compo-
nents and high temperature variations (e.g. from hot
sun to cold water) may get the better of the most water-
resistant case.
Since water and moisture infiltration may lead to costly
repairs, you are strongly advised to have your watch's
water resistance checked regularly by an Eterna autho-
rised retailer or an approved Eterna general agent.
ENGLISH
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