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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
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



 
M
N
O
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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 
 
M
N
O
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
 
M
N
O
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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 
M
N
O
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W
D
E
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T
U
H


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T
U
H
Setting the date, weekday and
time
Example:
– Date / time on the watch: 17 / 01h25 /
M
N
O
– Present date / time: 23 / 20h30 /
T
U
H
 Pull out the crown to position III
(the watch continues to run).
 Turn the crown until yesterday’s
weekday
W
D
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
T
U
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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M
N
O
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N
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N
O
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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
23


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M
N
O
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N
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
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
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 
M
N
O

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
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 
M
N
O







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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
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
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
  
 
M
N
O

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
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
 
M
N
O





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
27
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


A


B


A
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).





B


A


26