Ronda Mastertech User Manual

RONDA mastertech – Movement Cal. 8040.N & 8040.B
User's Manual English
You have decided to buy a watch, which was assembled by a watch-
maker using a Ronda movement. Please note that no watches are
produced or distributed under the Ronda brand.
In case of repairs, guarantee claims and questions concerning
the functioning of a watch, purchasers and consumers should
contact their retailer or the watch manufacturer, for which the
relevant information can be found in the sales or guarantee
documentation provided with the watch.
Description of the display and control buttons
Display elements 8040.N
Minute hand
1 ⁄ second counter
10
(running for the first 30 sec.)
Hour counter
after 30 min.
Day of the week hand
Hour hand
Minute counter
2 3
Second counter
Second hand
Date
Control buttons
Push-button A & B
01
Crown
A

I II III
2 3
B
A


I II III
2 3
B
02
A
 
I II
3 1
B
A
 
I II
0 1
B
03
A
I II III
1 7 
B
A

I II III
2 2

B
A

I II III
2 3
B
A
I II III
2 3

B
04
Display elements 8040.B
Minute hand
1 ⁄ second counter
10
A
(running for the first 30 sec.)
Hour counter
after 30 min.
Date
Hour hand
B
Minute counter
Second counter
Second hand
Control buttons
Push-button A & B
Crown

Setting the time


* P ull 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».
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 anticlockwise until the

correct date appears.
01
Push the crown back into position I.

Please note:
During the date changing phase between
approx. 8 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).
Setting the date,
day of the week (8040.N), time

Example:
– Date / time on the watch: / 01:25 /
17
– Present date / time: / 20:35 /
23
Pull out the crown to position III

(the watch stops).
 Turn the crown until yesterday's
day of the week appears.
FRI
 Push the crown to position II.
Turn the crown anticlockwise until

yesterday's date appears
22
* Pull out the crown to position III

(the watch stops).
Turn the crown until the correct

date and day of the week
23
appears.
SAT
** Continue to turn the crown until the

correct time 8:35 PM appears.
Push the crown back into position I.



Please note:
* To set your watch to the exact second,
please refer to the chapter entitled
«setting the time».
** Please observe the AM/PM clock rhythm.
05
A
2 3
B
06
07
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
65,5% = 40mm Druchmesser
MON
SAT
65,5% = 40mm Druchmesser
.
I
08
Battery type: 395 / SR927SW
Accuracy: +20 / -10 seconds per month

Chronograph: Basic function

A
(Start / Stop / Reset)


Example:
Start: Press push-button A.

Stop:

push-button A once more and read the
2 3
chronograph counters:
B
4 min / 38 sec /
A
Zero positioning:

Press push-button B.
(The chronograph hands will be reset to
their zero positions.)
2 3

B
Chronograph:
A
Accumulated timing



Example:

Start:

 Stop:
 Restart: (timing is resumed)
2 3
B *
 Stop:
A
Reset:

The chronograph hands are returned to
their zero positions.
Please note:
* Following
timing can be continued by pressing
2 3 
push-button A
B
(Restart / Stop, Restart / Stop, ...).
Chronograph:
A
Intermediate or interval timing

Example:

Start: (start timing)

 Display interval:
e.g.

continues in the background)

2 3
Making up the measured time:
* 
B
(the chronograph hands are quickly
advanced to the ongoing measured time.)
 Stop: (Final time is displayed)
A
Reset:

The chronograph hands are returned to
their zero position.
Please note:
* Following
mediates can be displayed by pressing
2 3

push-button B (display interval / make up
B
measured time, ...).
Adjusting the chronograph
A
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).
I II III
Pull out the crown to position III

2 3
(all chronograph hands are in their
B
correct or incorrect zero position.)
A
Keep push-buttons A and B depressed

65,5% = 40mm Druchmesser simultaneously for at least 2 seconds

(the second counter hand rotates by
360°  corrective mode is activated.)
III
2 3
65,5% = 40mm Druchmesser
B

A
Adjusting the second counter hand
Single step
Continuous

III
III
B
Adjusting the next hand B

A
Adjusting the 1 ⁄
10
Single step
Continuous
III

III
B
Adjusting the next hand B

A
Adjusting the minute counter hand (position 9h)
Single step
Continuous
III


Returning the crown to position I

III Termination of the chronograph hands
II
adjustment (can be carried out at any time).
to stop the timing, press
7 ⁄ sec
10
(start timing)
(e.g. 15 min 5 sec following  )
(e.g. 5 min 12 sec following )

= 20 min 17 sec
(The accumulated measured time is shown)
 , the accumulation of the
20 minutes 17 seconds (timing
 , further intervals or inter-
A
1 x short
A
long
III
III
second counter hand (position 3h)
III
A
1 x short
A
long
III
III
III
A
1 x short
A
long
III
III
07 / 2017