Seiko S140 User Manual

SEIKO Digital Stopwatch Cal. S140 features a frequency measuring

function that calculates and displays the frequency of an activity per

minute such as the number of strokes in rowing and swimming. It is

also  equipped  with  a  memory  function  that  stores  the

measurements  and  a  large-sized  three-row  display  panel  that  can

display the split time, lap time and total elapsed time or lap time in

progress  at  the  same  time  in  separate  rows.  In  addition,  the

stopwatch is water resistant and withstands up to 10 bar. Therefore, it

is suitable for aquatic sports or use in rainy weather.

●Frequency measuring function

The  frequency  of  an  activity  per  minute  such  as  the  number  of

strokes in rowing or swimming is automatically calculated only by

measuring the time required to make three strokes.

●Large-sized three-row display panel

Total elapsed time or lap time in progress, split time and lap time are

displayed  at  the  same  time,  and  they  can  be  measured

successively without releasing split or lap time measurement.

●Memory  recall  function  ...  Up  to  300  measurement  data  can  be

stored  in  memory.    Measurement  data  obtained  from  the  start  to

finish of the measurement is recorded as a block without erasing the

data  in  the  previous  block,  and  up  to  100  blocks  of  data  can  be

stored in memory.  

This  function  is  very  useful  for  separately  keeping  the  data

measured at different time and date.

●Besides,  the  stopwatch  is  equipped  with  such  convenient

functions  as  ID  No.  function  useful  for  keeping  the  data  of

individual  users  separately,  and  memory  capacity  indicator  and

fastest lap time recall functions.

●An  antibacterial  agent  is  applied  to  the  case  surface  of  the

stopwatches.

※It loses its antibacterial effect gradually over time and the effective

period differs depending on the conditions of use.

●Time/calendar display

Year,  month,  date,  hour,  minutes  and  seconds  can  be  displayed

while  the  stopwatch  and  frequency  measuring  functions  are  not

used.

※If your watch is water resistant (10 bar) and exposed to saltwater or pouring perspiration, rinse it fresh water

and then wipe it thoroughly dry.

※As  a  small  amount  of  moisture  is  included  inside  the  watch,  the  inner  surface  of  the  glass  may  be

temporarily  blurred  if  the  atmospheric  temperature  is  lower  than  that  inside  the  watch.  This  does  not
adversely  affect  the  watch.  However,  if  the  blur  persists  for  a  long  time,  we  suggest  that  you  have  your
watch checked by the retainer from whom it was purchased.

Designed   and  manu-
factured   to  withstand
the water usually expe-
rienced in a daily living
such as  splashes  and
rain.

Suitable for swimming,  

yachting and other  

aquatic sports as well as  

for works closely associat- 

ed with water such as  

kitchen work, watrning  

and fishing.

Suitable for scuba
diving

× 

○ 

○ 

○ 

Indication for water  
resistance

●  ＆WATER RESIST 

   又は 

●WATER RESIST 10BAR

Water resistance 

 (10 bar)

Condition 

 of use

Degree of  

water resistance 

 

Button   operation
when the watch is 
wet.

・If  the  watch  is  left  in  a

temperature below -10℃ or
above +60℃ for a long time
it  may  function  improperly
or stop operating.

※This watch is so adjusted that it will

maintain  stable  time  accuracy  in
normal temperatures.(5℃∼35℃)
It will lose or gain slightly, but it will
regain  high  time  accuracy  when  it
returns to normal temperature.

・Do  not  leave

the watch in a
place where it
is  subjected
to strong mag-
netism or sta-
tic elec-tricity.

・Do  not  leave

the watch in a
dusty place.

・Do not expose the watch to

gases or chemicals.

(Ex.:  Organic  solvents  such

as  benzine  and  thinner,

gasoline,  nail  polish,

cosmetic  spray,  detergent,

adhesives,  mercury,  and

iodine antiseptic solution.)

・Do not leave the watch in a

hot spring, or do not keep it

in 

a 

drawer 

having

insecticides inside.

●

●

Lap/split number

Button 

○

Ｃ

（Recall of the stored data） 

Stored lap times and split times are  
recalled by pressing the button.

Button

○

A

（Start/stop） 

Restart and stop of the stopwatch  
can be repeated by pressing the button

Split time (2 hours, 2 minutes and  
45 seconds 5/100)

Lap time (1 minute and 28 seconds  
33/100)

Total time (Accumulated elapsed time) 
(2 hours, 3 minutes and 56 seconds  
38/100)

Memory capacity indicator

Mode mark

Button

○

Ｂ

（Lap 

time/split 

time 

measurement, reset） 

With each press of the button after 

the  measurement  is  started,  lap 

time/split time is measured. 

By  pressing  the  button  to  end  the 

measurement,  the  new  block 

number  for  the  next  measurement 

is displayed.

Button

○

D 

(Changeover of modes) 

With each press of the button, the  
mode changes over in the order of the

Accumulated elapsed time display of  
the stopwatch mode

Lap time measurement in progress  
display of the stopwatch mode

Time/calendar mode.

Frequency measurement mode

Split  time  is  a  time  measured 
partway  from  the  start,  and  lap 
time is an elapsed time measured 
in a section.

Start

LAP time

Split time

・The SEIKO Stopwatch Cal. S143

features  a  "Block  Memory"  stop-
watch  operation  system.    The
data obtained from start till finish of
a race is recorded as a block and
stored in memory.

・The  time  and  date  of  starting  the

measurement  of  a  block  of  data
are 

automatically 

stored 

in

memory.

・Before 

the 

measurement 

is

started,  the  block  number  is
assigned  to  the  block  of  data  to
be measured. 

・Up  to  300  data  can  be  stored  in

memory.

・A  block  of  data  includes  at  least

three  data.    If  more  than  one
block  is  used  to  store  the  data,
the  memory  may  become  full
even  before  the  number  of  lap
time/split  time  measurements  in
memory amounts to 300.

（Start） 

（Stop） 

(Reset to "00")

Button

○

Ａ

 

Button

○

Ａ

 

Button

○

B 

The  new  block  num-
ber for the next mea-
surement  is  dis-
played with the digits 
reset to "00".

Press the buttons in the following order:

○

Ａ

→

○

Ａ

→

○

Ｂ

(Start of the game)

(Stop of the game)

(Restart of the game)

(Finish of the game) 

 

Button

○

Ａ

 

Button

○

Ａ

 

Button

○

Ａ

 

Button

○

Ａ

 

Button

○

B 

Restart  and  stop 

of  the  stopwatch 

can  be  repeated 

by pressing 

○

Ａ

.

(Reset to "00")

The  new  block  num-
ber for the next mea-
surement  is  dis-
played with the digits 
reset to "00".

Lap 8: Split time   2:01'14''21 
           Lap time    16'42''33

(5km point) 
Lap 1: Split time   14'58''08 
           Lap time    14'58''08

(10 km point) 
Lap 2: Split time   29'57''21 
           Lap time    15'01''13 
The lap time can be measured  
repeatedly by pressing

○

Ｂ

 

(Finish) 

Finish time  2:11'17''99

(Reset to 00)

Button

○

Ａ

 

Button

○

Ａ

 

Button

○

B 

Button

○

B 

Button

○

B 

Button

○

B 

(40 km point) 

 

Press the buttons in the following order:

○

Ａ

→

○

Ａ

→

○

Ａ

…

○

Ａ

→

○

Ｂ

Press the buttons in the following order:

○

Ａ

→

○

Ｂ

→

○

Ｂ

…

○

Ｂ

→

○

Ａ

→

○

Ｂ

④Accumulated elapsed time measurement

⑤How  to  measure  lap  time/split  time  (When  the  accumlated  elapsed  time  display  of  the

stopwatch mode is used, for example, in a marathon race)

(Start)

When the lap time measurement in  
progress exceeds 1 hour,  the hour  
digit appears in place of the mark for  
lap time in progress mark. 
 

（Lap/Split time） 

The lap time measurement  
in progress is displayed.

Each time button 

○

B 

is pressed  

to measure the lap time/split time,  

the digits are reset to "00" and the  

stopwatch starts counting from "00".

Button

○

Ａ

 

Button

○

B 

It indicates that the lap 

time  measurement  in 

progress  display  is 

shown.

Start

LAP１ 

Finish

LAP２ 

LAP３ 

LAP n

Lap  time  measurement  in  progress  display…  While  a  lap  time  is  being 
measured, the measurement in progress is displayed.

Press  button 

○

D

  to  show  the  lap  time  measurement  in  progress  display  ofthe 

stopwatch mode

⑥How  to  measure  lap  time/split  time  (When  the  lap  time

measurement in progress display of the stopwatch mode is

used)

・Order of recalling the stored data

・Button operation while the stored data is recalled

With each press of button 

○

C

 

The data is recalled starting from  
the oldest one. 
The data is recalled starting from the  
newest one.

 
When the stopwatch is stopped 
 
When the stopwatch is in use

Display before recall 
Reset 
 
Stopped 
 

Measuring

Button 

○

A

 

Returning to the dis- 

play before recall 
Returning to the dis- 

play before recall 
Stopping the mea- 

surement

Button 

○

B

 

Clearing the data  

in memory 
Returning to the dis- 

play before recall 
Measuring lap/split  

time

Button 

○

D

 

Returning to the dis- 

play before recall 
Returning to the dis- 

play before recall 
Returning to the dis- 

play before recall

⑦How to use the memory recall function

・The data obtained in the measurement can be recalled and displayed.
・Up to 100 blocks of data or 300 data can be stored and recalled.
・The stored data is recalled by pressing button 

○

Ｃ

.  The data is recalled successively if the button

is kept pressed.

・The stored data can be recalled while the stopwatch is measuring.

Block no.

Fastest LAP no. Fastest LAP

Lap/Split no.

Split time

Stop time

Recall button

(Fastest lap display)

（Start data） 

（RESET） 

The fastet lap time in this block is  

displayed together with the lap number.

Lap/split data in block "1"

Lap/Split８ Split time 2:1'14"12 

       Lap time   16'42"33

（STOP） 

Stop time 2:11'17"99

Start date

Start time

BLOCK2 

Start data

BLOCK3 

Start data

BLOCK3 

Stop time

○

C

○

C

○

C

○

C

Button 

○

C

○

C

○

C

○

C

○

C

Data in block "1"

Back to reset display in 
block''4''

○When the stopwatch is reset or stopped:
The data is recalled starting from the first data in block "1".
<Ex.) When the measurement of data in  block "4" has been completed with the digits reset to "00">

BLOCK3 

Firstest lap

BLOCK3 

Stop time

BLOCK1 
Lap/Split time1

○

C

○

C

○

C

○

C

○

C

○

C

○

C

○

C

○

C

Data in block "4"

The colon (:) starts flashing.

Fastest lap no.

(Display of the fastest lap time in block "4")

While the stopwatch is measuring, the measurement in  

progress is shown in the bottom row of the display.

BLOCK3 

Start data

BLOCK4 
Lap/Split time3

BLOCK4 
Lap/Split time3

 

Lap/Split time1

Lap/Split time3

Lap/Split time2

○When the stopwatch is measuring
The data is recalled starting from the newest one.
<Ex.) When the measurement of the third lap/split time in block "4" has been completed>

●Recall of the stroke data

By pressing button 

○

Ｃ

in the same

manner  you  recall  data  in  the

stopwatch mode, the stored stroke

data can be recalled.

※The  stored  data  cannot  be

recalled during the measurement.

With  each  press  of  button 

○

Ｃ

,  the

stored  data  is  recalled  successively

starting from the one in memory-1.

When  all  the  data  is  recalled,  the

display  returns  to  the  freguency

meassurement display.

●How to read the memory capacity indicator

The  number  of  data  stored  in  memory  is

displayed  graphically  with  a  10-segment

bar.

Each  segment  of  the  bar  corresponds  to

30 data.  The segments are displayed one

by  one  from  the  bottom  to  indicate  the

number of data in memory.

●When  the  memory  reaches  its  full

capacity:

・All  the  segments  of  the  bar  are

displayed.

・The  301st  data  and  those  measured

thereafter will be displayed but will not be

stored in memory for later recall.

Number of data in memory

When  10  or  less  data  of 

memory 

capacity 

is 

available,  the  top  segment 

starts  flashing.    When  the 

memory  is  at  its  full 

capacity,  it  stops  flashing 

and remains displayed.

30 to 59 data is stored 

in  memory.    When  no 

segment  is  displayed, 

0  to  29  data  is  stored 

in memory.

290∼300 
270∼290 
240∼269 
210∼239 
180∼209 
150∼179 
120∼149 

 90∼119 
 60∼  89 
 30∼  59

・The  number  of  data  in  memory  is  shown  graphically  by  the

memory capacity indicator.

・Besides the measured lap times/split times, the start time data and

block  number  are  also  retained  in  memory  as  two  separate

data.  Therefore, a block of data includes at least three data.  If

more  than  one  block  is  used  to  store  the  data,  the  memory

become  full  even  before  the  number  of  lap  time/split  time

measurements in memory amounts to 300.

●Memory data guide during recall

While  the  data  is  recalled,  a  segment  of  the  bar  flashes  to

indicate  the  measurement  order  of  the  data  being  recalled.In

the illustration below, 210 to 239 data is stored in memory and the

data  being  recalled  is  between  120th  and  149th  data  in

memory.

・The  memory  clear  function  is  useful  in  the  following

cases.

a）When the stored data becomes unnecessary.

b）When  the  residual  memory  is  not  sufficient  for  a  new

measurement.

・Once the following steps are taken to clear the data, all the

stored  data  is  erased  from  memory.    The  stored  data

cannot be erased one by one or block by block.

It flashes.

①While 

the 

stopwatch 

is

measuring  or  when  the  digits

are  not  reset  after  the  end  of

the  measurement,  the  stored

data  cannot  be  erased  from

memory.    In  that  case,  end

the  measurement  and  reset

the  stopwatch  by  following

the procedure below.

②Press button

○

C

(recall button).

In  the  memory  recall  display,

the stored data can be erased

irrespective  of  which  data  is

displayed.

(Digits reset to "00")

(Start data)

Button

○

C 

③Keep button 

○

Ｂ

pressed for more than 1.5 seconds.

While button 

○

Ｂ

is kept pressed, the display below is shown

with warning beeps.

After 1.5 seconds, the stored data is erased from memory with

a long beep.

All  the  data  is  erased  from  memory  and  the  initial

measurement display is shown.

※Unless button 

○

Ｂ is kept pressed for more than 1.5 seconds, the

stored data will not be erased from memory.

(Memory clear procedure)

※When the memory clear procedure is performed,  
 the mode mark will move toward the "RECALL" mark.

Button 

○

B 

(Digits reset to "00")

⑧How to clear the stored data (All clear of data)

After  about  7  years  of  use  digital
display  panel  will  decrease  in
contrast,  becoming  difficult  to
read.  Have  the  panel  replaced
with  a  new  one  by  the  retailer
from  whom  your  watch  was
purchased.

If  your  watch  is  of  the  fob  or  pendant  type,  the  strap  or  chain  attached  to  the  watch  may
damage your clothes, or injure the hand, neck, or other parts of your body.

●PERIODIC CHECK

・We suggest that you have

your  watch  checked  by
the  retailer  from  whom
your  stopwactch  was
purchased  every  2  or  3
years or when the battery
is  replaced  for  oil  condi-
tion,  battery  electrolyte
leakage or damage due to
water  or  sweat.  After
checking  the  watch,
adjustment  and  repair
may be required.

･ If  the  watch  requires  service,

take it to the retailer from whom

the  watch  was  purchased.  If

the  trouble  occurs  within  the

guarantee  period,  submit  the

certificate  of  guarantee  togeth-

er with the watch.

･ For  repair  after  the  guarantee

period or for any other informa-

tion  regarding  the  watch,

contact  the  retailer  from  whom

the  watch  was  purchased  or

the  "SEIKO  S-YARD CO,

LTD.".

･ Guarantee  coverage  is  spelled

out  in  the  certificate  of  guaran-

tee. Please read it carefully and

keep  the  certificate  for  ready

reference.

･ SEIKO makes it policy to usually

keep a stock of spare parts for its

watches for 7 years. In principle,

your watch can be reconditioned

within  this  period  if  used

normally. (Replacement parts are

those  which  are  essential  to

maintaining  the  functional

integrity of the watch.)

･ The  number  of  years  that  a

watch  is  considered  repairable

may vary greatly depending on

the  conditions  under  which  it

was  used,  and  normal  accura-

cy  may  not  be  achieved  in

some  cases.  We  recommend,

therefore,  that  you  consult  the

retailer  from  whom  the  watch

was  purchased  when  having

them repair your watch.

･ The  case,  dial,  hands,  glass

and  bracelet,  or  parts  there  of

may  be  replaced  with  substi-

tutes  if  the  originals  are  not

available.

1. Frequency of crystal osillator 

……………32,768Hz (Hz＝Hertz…Cycles per second)

oscillator

2. Loss/gain (monthly rate) ……………………Less than 15 seconds at normal temperature range (5℃∼35℃)
3. Operational temperature range 

…………−10℃∼＋60℃

Desirable temperature range of use ………０℃∼＋50℃

4. Display system ……………………………… Stopwatch display  Measures up to 10 hours. Hour, minutes, sec-onds, 1/100

seconds, tnree-row display of split time/lap time/total elapsed time or lap time in
prooress.  No.  of  blocks,  no.  of  split  times  (0∼ 999),  300  memory  recall,
BLOCK,  SPLIT,  LAP,  STOP,  RECALL,  stopwatch  marks,  memory  indicator,
BATT.

Frequency  measurement  display    Hundreds  and  tens  digits,  units  and  first

decimal  place.  Frequency  measurement  marks.  Measures  10  to  180  stokes
per  minute  from  1  to  18  seconds  after  the  function  is  started.Memor  recall.
Memory marks.

Time/calendar  display    Hour  (24hour  indication),  minutes,  seconds,  year,

month,  date  and  calendar  mark,  ID  no.  (OFF/01∼ 99),  contrast  adjustment
display.

5. Display-medium  ……………………………Nematic Liquid Crystal, FEM (Field Effect Mode)
6. Battery  ………………………………………Lithium battery SB-T74, 1 piece
7. Battery Life

…………………………………A new normal battery will last approximately three years.

※If the stopwatch is used for more than 3 hours a day, the battery life may be less than 3

years.

8. Battery life indicator …………………………"BATT" mark start flashing when the battery life nears its end.
9. IC (Integrated Circuit) ………………………C-MOS-LSI    (Complementary  Metal  Oxide  Silicon-Large  Scale  Integrated

Circuit) ……………………………1 piece

※The specifications are subject to change without prior notice, for product improvement.

(1)Battery Life

A new normal battery will last approximately three years.

※If the stopwatch is used for more than 3 hours a day, the battery life may be less

than 3 years.

(2)Monitor battery

The battery in your watch may run down in less than three years after the date of

purchase,  as  it  is  a  monitor  battery  which  is  inserted  at  the  factory  to  check  the

function and performance of the watch.

(3)Battery change

①For battery replacement, be sure to have the battery replaced with a new one at

the  retailer  from  whom  the  watch  was  purchased  or  at  an  authorized  SEIKO

DEALER, and request the battery for exclusive use with the SEIKO watches.

②If the old battery is left in the watch for a long time, a malfunction may be caused

due to battery leakage, etc. Have it replaced with a new one as soon as possible.

③Battery replacement is charged even if it runs down within the guarantee period.

(4)BATTERY LIFE INDICATOR

When  the  battery  nears  its  end,  flashing  battery  mark  "BATT"  is

displayed.  In that case, have the battery replaced with a new one

as soon as possible by the retailer from whom your stopwatch was

purchased  or  an  AUTHORIZED  SEIKO  DEALER.    When  the

battery is replaced with a new one, all the stored data will be erased

from memory.

1.Do not remove the

battery  from  the
watch.

2.If it is necessary to

take  out  the  bat-
tery, keep it out of
the  reach  of  chil-
dren.

3.If  the  child  swal-

lows  it,  consult  a
doctor immediately
as it will adversely
affect the health of
the child.

1.Never  short-circuit,  tamper

with  or  heat  the  battery,  or

never  expose  it  to  fire  as  it

may  explode,  generate  and

intense heat or catch fire.

2.The  battery  in  your  watch  is

not 

rechargeable. 

Never

attempt to recharge it, as this

may  cause  battery  leakage

or damage to the battery.

3.If  the  watch  is  left  in  a

temperature  below  +5℃ or

above +35℃ for a long time,

the  battery  leakage  may

result,  causing  the  battery

life to be shortened.

⑤Remarks on after-sales

servicing

●Press button 

○

Ｄ

to show the Accumulated elapased time display of the

stopwatch mode.

(Stroke data recall display)

Memory number: The smaller the number is,  

the newer the data is.

Button

 ○

C

 

(Stroke data recall display)

Button

 ○

C

 

○

B

○

A

Seconds setting

Minutes setting

Hour setting

Year setting

Month setting

Date setting

ID setting

Finish of time/ 
calendar setting

○

B

○

A

○

B

○

A

○

B

○

A

○

B

○

A

○

B

○

A

○

B

○

A

○

B

・The contrast of the display can be adjusted.

①Show the time/calendar mode.

②Press button 

○

C

to show the contrast adjustment display.

The contrast can be adjusted for 10 levels from level "1" to "10".
The display is the lightest at level "1" and the darkest at level "10".

③Press button  

○

C

or  

○

D

to return to the time/calendar mode.

Contrast adjustment display 
Button 

○

Ａ 

: Increasing the level (darker) 

Button 

○

B  

: Decreasing the level (lighter)

○

Ａ 

○

C

○

B

●Press button 

○

D

to show the frequency measuring display

●Stop the measurement after the third stroke was made. The number of strokes per minute will be displayed.
・Up to 9 data can be stored in memory.  If 9 data is already stored in memory and a new measurement is made, the oldest one will be erased from memory.

○

A

○

A

○

B

Memory number: The smaller the number is, the newer the data is.

It will be stored in memory.

（Frequency measuring 

function mark） 

Start

Measuring

Stop

Return to "0_0"

"Error display"

※During  1  second  after  the  measurement  has  been  started  by

pressing  ○

A

,  flashing  "180-0"  is  displayed.  If  the  measurement  is

stopped by pressing ○

A

during this period, "Error" will appear. If the

measurement  is  not  stopped  by  pressing  ○

A

after  more  than  18

seconds  have  elapsed,  "Error"  will  automatically  appear.

Therefore,  please  note  that  measurable  number  of  strokes  per

minute is between 10 and 180.

When the digits are reset to "00" or a new measurement is

started, the data measured last will be stored in memory-1.

When  the  new  measurement  is  made,  the  new

measurement data will be stored in memory-1 as the data in

memory-1 is transferred to memory-2.

In  this  way,  as  a  new  measurement  is  made,  the  newest

data is always stored in memory-1, and the memory number

of the old data is automatically increased one by one.

When "Error" dis-play is

appeared  press  button

○

B

to  reset  and  press

button 

○

A

to restart.

□

１

Press

○

B 

and  the  sec-

ond digits will flash.

□

２

Press

○

A 

in  accordance

with  a  time  signal  to
reset the second digits
to "00".

□

３

Press 

○

B 

and  the

minute  digits  will
flash.

□

４

With  each  press
of 

○

A 

, one minute

is advanced.

□

７

Press 

○

B

and  the  year

digits will flash.

□

８

With each press of 

○

A

one year advanced.

□

11

Press 

○

B

and  the  date

digits will flash.

□

12

With each press of 

○

A 

,

one day is advanced.

□

15

After  all  the  adjust-
ment 

are 

com-

pleted, press 

○

B 

.

□

13

When button

○

B 

is pressed,

the  identification  number

digits start flashing.

□

14

With  each  press  of  button

○

A 

,  one  digit  is  advanced.

"OFF"  means  that  no

identification  number  is

set.

□

９

Press 

○

B  

and the month

digits will flash.

□

10

With  each  press  of 

○

A 

,

one month is advanced.

□

５

Press 

○

B 

and  the

hour  digits  will
flash.

□

６

With  each  press
of 

○

A 

one  hour  is

advanced.

※Hour 

digits 

are

displayed  in  the  24-
hour indication.

※When the second digits count any number from "30"

to  "59"  and 

○

Ａ

is  pressed,  one  minute  is  added  and

the second digits are reset to "00".

※The  digits  move  quickly  if 

○

Ａ

is  kept  pressed.  The

hour,  year,  month  and  date  digits  can  also  move

quickly if the button is kept pressed.

●With each press of 

○

B 

, the digits to be adjusted  change over in the following order.

Time  

display

The digits are flashing.

Seconds 

Minutes 

Hour 

Year 

Month 

Date 

ID

Any of the digits can be adjusted individually.
Press 

○

B

to  select  the  digits  to  be  adjusted,

and then press 

○

A

to set them.

※The  year  digits  can  be  set  from  1999  to  2048.

The  calendar  adjusts  automatically  for  add  and

even months including February of leap years.

S140

S140

取扱説明書 

INSTRUCTION

このたびはセイコーデジタルストップウオッチ
S140をお買い上げいただきありがとうございました。 
ご使用の前にこの取扱説明書をよくお読みのうえ
正しくご愛用くださいますようお願い申し上げます。
なおこの取扱説明書はお手もとに保存し、必要に
応じてご覧下さい。 

本 社 東京都中央区京橋２丁目6番21号 〒104-8331

東京都中央区京橋  2-7-16

 
大阪市西区新町 1-4-24（大阪四ﾂ橋第一生命ビル）

(011)231-0615
(022)227-4171
(052)723-8206
(082)248-1020
(092)271-2538

060-0061
980-0021
461-0048
730-0037
810-0801

札幌市中央区南一条西 7-20-1（札幌スカイビル）

 

仙台市青葉区中央 2-7-28（セイコー仙台ビル） 
名古屋市東区矢田南 3-3-12 
広島市中区中町 7-16（ポレスター広島） 
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(03)3535-2211
(06)6538-6541

″ 

お客様相談係 

〒 
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550-0013

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″ 

セイコー製品について、修理その他のご相談は、「お買い上げ店」で 
うけたまわっております。 
 

 
 
なお、ご不明の点は下記へお問い合せください。 

●

●

○

A

Year
Month and date

Time  
(displayed in the 24- 
 hour indication)

Time/calendar display mark

ID no.

○

Ｂ 

Selection  of  the  digits  to 
be adjusted.

Setting  the  digits  to  be 
adjusted 
(The digits can be advanced 
quickly  by  keeping  the 
button pressed.)

With each press of the button, 
the  display  changes  over  in 
the following order.

○

Ｃ 

With  each  press  of  the  button,  the 

display changes over between cotrast 

adjustmen  display  and  time/calendar 

display alternately.

Accumulated elapsed time display of  
the stopwatch mode

Lap time measurement in progress  
display of the stopwatch mode

Time/calendar mode.

Frequency measurement mode

○

D

●Press botton 

○

D 

to show the time/calendar display.

●To clear the stored data

By keeping button 

○

Ｂ

pressed for more than 1.5 seconds in the stroke data

recall display, all the stored data will be erased from memory.

Use button 

○

Ｂ

in the same manner as you

clear the data in the stopwatch mode.

Start 

↓ 1st stroke 2nd stroke 3rd stroke

Stop 

↓ 

（Memory clear procedure）

Button

 ○

B