Ronda Startech 5050.C User manual

User’s Manual

– Brief specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

– Description of the display and control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

– Setting the time / date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 – 21

– Operation of the chronograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 – 27

Cal. 5050.C

In case your watch needs to be repaired or to raise claims

under a guarantee, please contact the point of sales

Brief specications

Time/Date

• Hour hand

• Minute hand

• Small second hand (position 3h)

• Date (position 6h)

• Weekday (position 12h)

Chronograph

• Hour counter up to 12 hours (position 9h)

• Minute counter up to 30 minutes (position 9h)

• Centre stop-second

General

• Battery type: 395 (diameter 9.5mm x 2.6mm / SR 927 SW)

• Accuracy: +20 / -10 seconds per month

Cal. 5050.C

16 17

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 

Description of the display and control buttons

Display elements

Second hand

Minute hand

Weekday

Hour hand

Minute counter

Hour counter

Centre stop-second

1⁄10 second counter

Date

Control buttons

Push-button A

Crown

Push-button B



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 

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

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

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

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

 

Setting the time



Pull out the crown to position III

(the watch stops).



Turn the crown until you reach the correct

time 8.45.



* Push the crown back into position I.

Please note:

* In order to set the time to the exact second,



must be pulled out when the second

hand is in position «60» (I).

Once the hour and minute hands have been

set,



must be pushed back into position I

at the exact second.







Setting the date (quick mode)



Pull out the crown to position II (the watch

continues to run).



Turn the crown until the correct

date 1 appears.



Push the crown back into position I.







Second hand

Please note:

During the date changing phase between

9 PM and 12 PM; the date must be set to the

date of the following day.

An extreme acceleration in setting the date

with quick mode can induce a false date indi-

cation. The synchronization is re-established

by setting the date from 01 till 31 (crown in

position II).

Date

1918

 





















 









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







 

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

  

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

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

  

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



 

Setting the date, weekday and

time

Example:

– Date / time on the watch: 17 / 01h25 /

– Present date / time: 23 / 20h30 /



Pull out the crown to position III

(the watch continues to run).



Turn the crown until yesterday’s

weekday

E appears.



Push the crown to position II.



Turn the crown until yesterday’s date

appears 22 .





Crown

Date

Second hand



* Pull out the crown to position III

(the watch stops).



Turn the crown until the correct date 23

and weekday

H appears.



** Continue to turn the crown until the

correct time 8.30 PM appears.



Push the crown back into position I.













Weekday

Please note:

* To set your watch to the exact second,

please refer to the chapter entitled «set-

ting the time».

** Please observe the AM/PM clock rhythm.

The setting of the weekday can be accelera-

ted by turning the crown backwards (4.5 h)

after a week day change, followed by turning

the crown in forward direction.

2120



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 

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

Display elements

Centre stop-second

Minute counter

Hour counter

1⁄10 second counter

Control buttons

Push-button A

(Start / Stop)

Push-button B

(Reset)

Chronograph:

• The chronograph’s hour counter measures times up to 12 hours.

• The minute counter measures 30 minutes per rotation.

• The center stop-second measures 60 seconds per rotation.

• The 1⁄10 second counter measures 1 second per rotation.

Please note:

Before using the chronograph functions, please ensure that:

 the crown is in position I (= normal position).



the 4 chronograph hands are precisely at zero position following activation of push-button B.

Should this not be the case, the positions of the hands must be adjusted (see the chapter

entitled «adjusting the chronograph hands to zero position»).

Chronograph: Basic function

(Start / Stop / Reset)

Example:



Start: Press push-button A.



Stop: to stop the timing, press

push-button A once more and read

the 4 chronograph counters:

4h / 20 min / 5 sec /

7⁄10 sec



Zero positioning:

Press push-button B.

(The 4 chronograph hands will be reset to

their zero positions).







Second counter

Push-button B

1⁄10 second counter

Minute counter

Hour counter

Push-button A





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

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

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





 

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





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

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





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

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





 

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

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

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

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

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

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

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







 















 



















 















Push-button B

Second counter

1⁄10 second counter

Minute counter

Hour counter

Push-button A

Chronograph:

Accumulated timing

Example:



Start: (start timing)



Stop: (e.g. 15 min 5 sec following



)



Restart: (timing is resumed)



* Stop: (e.g. 10 min 5 sec following



)

= 25 min 10 sec

(The accumulated measured time is shown)



Reset:

The 4 chronograph hands are returned to

their zero positions.

Please note:

* Following



, the accumulation of the

timing can be continued by pressing push-

button A

(Restart / Stop, Restart / Stop, …) Push-button B

Push-button B

Chronograph:

Intermediate or interval timing

Example:



Start: (start timing)



Display interval:

e.g. 10 minutes 10 seconds (timing

continues in the background)



Making up the measured time:

(the 4 chronograph hands are quickly

advanced to the ongoing measured time).



Stop: (Final time is displayed)



Reset:

The 4 chronograph displays are returned

to their zero position

Please note:

* Following



, further intervals or inter-

mediates can be displayed by pressing

push-button B (display interval / make up

measured time, ...)

Second counter

1⁄10 second counter

Minute counter

Hour counter

Push-button A

2524















 



















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

  

 















 



















 











Push-button B

Push-button A

Adjusting the chronograph

hands to zero position

Example:

One or several chronograph hands are not

in their correct zero positions and have to be

adjusted (e.g. following a battery change).



Pull out the crown to position III

(all 4 chronograph hands are in their

correct or incorrect zero position).



Keep push-buttons A and B depressed

simultaneously for at least 2 seconds

(the centre stop-second rotates by

360°  corrective mode is activated).



Centre stop-second

1⁄10 second counter

Minute counter

Hour counter

Adjusting the centre stop second

Single step





A 1 x short

Continuous





A long

Adjusting the next hand B





Adjusting the

1⁄10 second counter hand (position 6h)

Single step





A 1 x short

Continuous





A long

Adjusting the next hand B





Adjusting the minute counter hand

and the hour counter hand

(mechanical coupled)

Single step





A 1 x short

Continuous





A long













65,5% = 40mm Druchmesser

III

I II







Returning the crown to position I

Termination of the chronograph hands

adjustment (can be carried out at any time).













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