eta Chronograph ETA 251.272 User Manual

ETA SA Manufacture Horlogère Suisse
depuis 1793
I II
III
30
20
10
60
40
20
31
A
I II
III
30
20
10
60
40
20
31
I II
III
30
20
10
60
40
20
31
B
B
A
B
I II
III
30
20
10
60
40
20
31
C
D
I
30
20
10
60
40
20
31
B
A
1
2
3
3
1
E
B
A
X
1
2
3
4
5
6
X
1
I
30
20
10
60
40
20
31
F
B
A
B
A
1
2
3
1
I
30
20
10
60
40
20
31
I
30
20
10
60
40
20
31
B
A
B
A
4
5
6
7
7
I
30
20
10
60
40
20
31
I
30
20
10
60
40
20
31
DISPLAY
Setting crown
(position I, II, III)
1/10 second
counter
Second
hand
Hour
hand
Minute
hand
Watch hands
60 seconds
counter
30 minutes
counter
Date
indicator
Push-
button A
Push-
button B
SETTING THE COUNTERS TO ZERO
Set the hand of
the 1/10 second
counter to zero
Set the hand of
the 60 seconds
counter to zero
Set the hand of
the 30 minutes
counter to zero
Setting crown in position II or III
SETTINGS
Note :
Crown 3 positions
Dietting crown in position II
for longer 20 minutes
(time could be lost).
Normal running of watch
Correcting time position:
stop second and correction of the
date at every passing to midnight
Correcting time-zone and
correction of the date at
every passing to midnight
TIMING MODE
Before starting the time, put back the
chronograph hands to their original position.
If necessary, see paragraph SETTING THE
COUNTERS TO ZERO.
Simple timing function
Read time
STOP
Reset to zero
- 5 minutes
- 57 seconds
- 7/10 second
Setting crown
in position I
order of functions
to
WARNING
START
to
STOP Read
STOP Read
STOP Read
RESTART
RESTART
START
order of functions
Setting crown in position I
ADD function
TIMING MODE
Reset
to zero
(catching-up)
TIMING MODE
SPLIT-TIME or INTERMEDIATE TIME function
START
Setting crown
in position I
SPLIT 1
Read time 1
- 5 minutes
- 4 seconds
- 6/10 second
RESTART
order of functions
to
SPLIT 2
Read
LAST TIME
Read time 2
- 8/10 second
- 24 seconds
- 6 minutes
RESTART
Reset
to zero
(catching-up)
STOP
- 20 minutes
- 42 seconds
- 4/10 second
CHRONOGRAPH
ETA 251.272
328 005 - 30.05.2005 / ETA / 04

eta Chronograph ETA 251.272 Specifications

General

Brand	eta
Model	Chronograph ETA 251.272
Category	Watch
Language	English

Summary

Display and Watch Hands Overview

Watch Components Identification

Identifies watch hands, date indicator, counters, push buttons, and setting crown positions.

Setting Counters to Zero

Reset 30-Minute Counter

Sets the hand of the 30-minute counter to zero using the crown in position II or III.

Reset 60-Second Counter

Sets the hand of the 60-second counter to zero using the crown in position II or III.

Reset 1/10 Second Counter

Sets the hand of the 1/10 second counter to zero using the crown in position II or III.

Watch Settings and Operation

Crown Positions Overview

Details the three positions of the watch crown and their functions.

Time-Zone and Date Correction

Explains correcting time-zone and date at midnight.

Time Correction Procedures

Describes stopping the second hand and correcting the date.

Simple Timing Mode Function

Start Timing Function

Initiates the timing function by pressing push-button A.

Stop Timing and Read

Halts the timer and allows reading of the elapsed time.

Reset Timing to Zero

Resets the timing counters to zero using push-button B.

ADD Timing Mode Function

Start ADD Timing

Begins the ADD timing function with the crown in position I.

Stop and Restart ADD Timing

Allows stopping and restarting the ADD timing sequence.

Reset ADD Timing

Resets the ADD timing function hands to zero.

Split-Time or Intermediate Timing Mode

Start Split-Time Function

Initiates the split-time function with the crown in position I.

Record and Read Split 1

Records the first intermediate time (Split 1) and displays its duration.

Restart After Split 1

Resumes timing after recording Split 1, allowing the main timer to catch up.

Record and Read Split 2

Records the second intermediate time (Split 2) and displays its duration.

Restart After Split 2

Resumes timing after recording Split 2, allowing the main timer to catch up.

Stop and Read Last Time

Stops the timing and displays the total elapsed time.

Reset Split-Time Function

Resets all split-time function counters to zero.