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III

65,5% = 40mm Druchmesser

III

A

65,5% = 40mm Druchmesser

III

B

65,5% = 40mm Druchmesser

III

A

65,5% = 40mm Druchmesser

III

I

II

65,5% = 40mm Druchmesser

III

B

65,5% = 40mm Druchmesser

III

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Display 

elements    

 8040.N

Minute hand

1

10

 second counter

(running for the first 30 sec.)

Hour counter  

after 30 min.

Day of the week hand
Hour hand

Minute counter
Second counter

Second hand
Date

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 

chronograph counters:

 

4  min / 38  sec / 

7

10

 sec

  Zero positioning: 

 

Press push-button B

 

 (The chronograph hands will be reset to 

their zero positions.)

Chronograph: 

Accumulated timing

Example:

  Start:  (start timing)

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

)

  Restart: (timing is resumed)

Stop:

  (e.g.   5  min   12 sec following 

)

    

      = 

20 min  17 sec

  

(The accumulated measured time is shown)

  Reset: 

 

 

 The 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, …).

Chronograph: 

Intermediate or interval timing

Example:

  Start: (start timing)

 

Display interval:

 

 e.g. 

20 minutes 17 seconds

 (timing  

continues in the background)

  Making up the measured time:

 

 (the chronograph hands are quickly 

advanced to the ongoing measured time.)

  Stop: (Final time is displayed)

  Reset: 

 

 

 The chronograph hands 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, ...).

*

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 chronograph hands are in their  

correct or incorrect zero position.)

   Keep  push-buttons  A and B depressed 

simultaneously for at least 2 seconds 

 

(the second counter hand rotates by  

360° 

 corrective mode is activated.)

Adjusting the second counter hand

Single step 

65,5% = 40mm Druchmesser

III

   

1 x short

Continuous  

65,5% = 40mm Druchmesser

III

  A

  long

Adjusting the next hand  B  

65,5% = 40mm Druchmesser

III

 

Adjusting the 

1

10

 second counter hand (position 3h)

Single step 

65,5% = 40mm Druchmesser

III

   

1 x short

Continuous  

65,5% = 40mm Druchmesser

III

  A

  long

Adjusting the next hand  B  

65,5% = 40mm Druchmesser

III

 

Adjusting the minute counter hand (position 9h)

Single step 

65,5% = 40mm Druchmesser

III

   

1 x short

Continuous  

65,5% = 40mm Druchmesser

III

  A

  long

  Returning the crown to position I

 

 Termination of the chronograph hands  

adjustment  (can be carried out at any time).

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».  

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 

01

 appears.

  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:  17  /  01:25 / 

MON

– Present date / time: 

23  /  20:35 / 

SAT

  Pull out the crown to position III  

 

(the watch stops).

   Turn the crown until yesterday’s  

day of the week 

FRI

 appears.

 

   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   23  and day of the week  

  

SAT 

appears.

** 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.

User’s Manual English

RONDA mastertech – Movement Cal. 8040.N & 8040.B  

07 / 2017

Battery type: 395 / SR927SW

Accuracy: +20 / -10 seconds per month

Display 

elements     

 

8040.B

Minute hand

1

10

 second counter

(running for the first 30 sec.)

Hour counter  

after 30 min.

Date
Hour hand

Minute counter
Second counter

Second hand

Description of the display and control buttons 

RONDA mastertech – Uhrwerk Kal. 8040.N & 8040.B  

Control buttons

Push-button A & B

Crown

Control buttons

Push-button A & B

Crown

B

B

A

A

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.

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

01

05

02

06

03

07

04

08

01

02

03

04

BA_8040N_8040B.indd   1

20.07.17   16:04

Summary of Contents for Mastertech 8000

Page 1: ...40 N Size 15 Version Swiss Made 13 Jewels gold plated Standard battery life 48 months Hand fitting height 1 Features Repairable metal watch movement Very long battery life Power saving mechanism with pullled out stem Reduction of consumption approximately 70 Very easy handling by two pushers Big date with quick change Date 30 10 2018 www ronda ch Page 1 ...

Page 2: ...er stem 3 30 mm Length of stem travel 1 00 mm Force to push the stem for screwed crown 10 15 N Stem thread 0 90 mm Standard battery 395 Standard battery life 48 months Battery voltage 1 5 V Current consumption typical 1 48 μA Date Mechanism not in Gear Current consumption maximum 2 μA Date Mechanism not in Gear Useful torque second typical 6 μNm Useful torque minute typical 300 μNm Useful torque c...

Page 3: ...tion pour extraire la tige Pile Batterie 395 Ø 9 50 x 2 70 Battery S 0 9 Course Weg Travel 1 00 S 0 9 30 30 S 0 9 Ø 1 9 72 S 0 9 6 68 14 85 5 6 2 8 min 5 85 min 3 05 3 3 150 0 70 0 0 00 0 15 0 00 0 22 Ø 34 6 0 30 Ø 1 1 Ø 33 8 0 30 0 6 10 Vis Schraube Screw No 4000 323 Vis Schraube Screw No 4000 324 R 16 28 3x 0 43 Ø 2 1 0 3 0 8 1 2 3 95 R 16 28 3x 0 28 Ø 2 6 0 3 1 2 00 No 5000 367 8040 N Sous rése...

Page 4: ...t Ø D e Ø 0 4 15 2 Ø 1 6 0 1 0 0 Ø D p a b 15 Ø Dp a b 10 T Ø D t Ø D e P Ø 1 6 0 1 0 0 Ø D p Ø 0 4 20 2 a b 10 00 No 5000 390 8xxx x Sous réserve de modifications Aenderungenvorbehalten Modificationsreserved Angle of pusher A and B Winkel der Drücker A und B Angle des poussoirs A et B RONDA Modified Scale 2 5 1 10 1 A3H 20 µm fl Issued Tolerance Released 12 Feb 2010 fl ÄA 5198 YES 22 Sep 2009 ...

Page 5: ......

Page 6: ...0 0 4 1 0 Ø 0 200 Ajustement aiguille Zeigerpassung Hand fitting Appui cadran Zifferblattauflage Dial seat Conicité Konizität Conicity 2 En cas de données différentes veuillez contacter le service après vente Bei abweichenden Werten bitte technischen Kundendienst anfragen In case of different values please contact the customer service Sous l aiguille des jours rétrograde Unter Tageszeiger retrogra...

Page 7: ... intégrée dans le mouvement Arbeitstellwelle im Werk eingebaut Working stem implemented in the movement Code dunkelgrau dark grey No d article Artikelnummer Part number L L1 3000 203 L2 L3 S D 21 30 11 67 28 57 11 12 1 10 0 90 Tige normale Stellwelle normal Stem normal No d article Artikelnummer Part number L4 L5 min 3000 040 L6 S1 S2 D1 12 00 1 90 2 60 0 90 1 35 0 90 Rallonge de tige Stellwelle V...

Page 8: ... in the retrograde window Crown in position II Wind crown until date 02 appears Crown in position III Wind hour hand forwards until date changes to 03 Remove working hand Fit dial Set retrograde hand on Sunday Point remaining hands towards 12 o clock Advance time setting to install actual weekday Set time Zero chronograph hand Crown in position II Set date Crown in position I Date switching durati...

Page 9: ... in their correct or incorrect zero position Keep push buttons A and B depressed simultaneously for at least 2 seconds the second counter hand rotates by 360 corrective mode is activated Adjusting the second counter hand Single step 65 5 40mm Druchmesser III A 1 x short Continuous 65 5 40mm Druchmesser III A long Adjusting the next hand B 65 5 40mm Druchmesser III Adjusting the 1 10 second counter...

Page 10: ...05 364 CO Canon pinion Aig 1 4 A 2030 029 Center bridge 5 Center bride held by 2 screws 4000 250 4000 250 Screw 6 3406 040 Friction spring 7 Friction spring held by 1 screw 4000 250 4000 250 Screw 8 3622 055 Stator 9 3622 054 Stator chrono 10 Mark 1 on stator 3715 119 RK Rotor 11 3715 119 RK Rotor 12 B 3147 073 CO Intermediate wheel 13 3147 074 CO Intermediate wheel chrono 14 3122 067 CO Third whe...

Page 11: ...te wheel counter 30min 25 D 2020 191 G Counter train wheel Bridge 26 Train wheel bridge held by 2 screws 40000 250 Mark 2 4000 250 Screw 27 3622 039 Stator counter 28 3402 013 CO Counting wheel 1 10 s 29 3715 120 RK Rotor 30 3147 075 CO Intermediate wheel counter 1 10 s 31 2020 190 G Counter train wheel bridge 32 Train wheel bridge held by 2 screws 40000 250 Mark 2 4000 250 Screw 33 E 3016 029 Sto...

Page 12: ...50 Screw 42 G 3603 089 Battery insulator 43 3601 134 Pusher contact spring 44 3612 218 Electronic module 45 Electronic module held by 6 screws Electronic measurements may be realised now 4000 248 Screw 46 4 screws 4000 248 for pressing the module on the coils 4000 250 Screw 47 2 screws 4000 248 for pressing the module on the 2 posts 3601 132 G Lateral bridle 48 Lateral bridle held by 1 screw 4000 ...

Page 13: ...nda ch 4 2000 700 CO Main plate 56 J 3017 054 CO Setting lever 57 3001 046 Sliding pinion 58 3015 088 Yoke 3 positions 59 3905 063 Setting lever jumper 60 Lever held by 1 screw 4000 282 4000 282 Screw 61 K 3004 200 Corrector setting wheel 62 3004 200 Corrector setting wheel 63 3015 087 CO Setting wheel yoke 64 L ...

Page 14: ...n bridge held by 3 screws 4000 278 4000 278 Screw 71 M 2000 672 G Main plate retro 72 Minute plate retro held by 4 screws 4000 248 4000 248 Screw 73 N 3004 220 Tens indicator driving wheel 74 The short tooth of the tens indicator driving wheel must point to the center of the movement 3500 072 Tens jumper 75 2130 187 Tens jumper maintaining plate 76 Tens jumper maintaining plate held by 2 screws 40...

Page 15: ...Day rack 82 3406 031 Day rack lever 83 3147 066 CO Date corrector setting wheel 84 3507 059 CO Date corrector wheel 85 P 2130 191 Date indicator plate 86 3905 068 Date corrector spring 87 Date corrector spring held by 1 screw 4000 244 4000 244 Screw 88 3905 066 Day rack lever spring 89 Tensioning the spring arm 3500 068 Date jumper 90 3500 069 Day jumper 91 Tensioning the spring arm Q ...

Page 16: ...nst the day came pinion while turning softly in counterclockwise direction 3004 212 Days driving wheel 97 Insert the tooth of the wheel in the flange gap while turning softly in counterclockwise direction to ensure correct position of the day finger 3401 086 FI Day indicator pinion 98 3147 062 Tens intermediate wheel 99 Arrow positioning radially outwards 3504 231 AD 1 A Tens indicator standard 10...

Page 17: ...m in position I calendar not in gear 60 s measuring interval for rate and consumption Typical consumption Maximal consumption 1 48 µA 2 00 µA Rate 10s M 20s M Lower working voltage limit 1 20 V Hold down the electrical module to allow the electronic flow Setting stem in position III 60 s measuring interval Typical consumption Maximal consumption 0 10 µA 0 30 µA ...

Page 18: ...a ch EM 2 Electronic measurements 8040 N Coil resistance M1 1 50 kΩ 1 70 kΩ Coil resistance M2 1 68 kΩ 1 88 kΩ Coil resistance M3 1 68 kΩ 1 88 kΩ Coil resistance M4 1 68 kΩ 1 88 kΩ Coil isolation M1 M2 M3 M4 kΩ Signal generator 4 9 ms 8 Hz Lower working voltage limit M2 M3 M4 1 20 V ...

Page 19: ...5 364 CO Canon pinion Aig 1 4 A 2030 029 Center bridge 5 Center bride held by 2 screws 4000 250 4000 250 Screw 6 3406 040 Friction spring 7 Friction spring held by 1 screw 4000 250 4000 250 Screw 8 3622 055 Stator 9 3622 054 Stator chrono 10 Mark 1 on stator 3715 119 RK Rotor 11 3715 119 RK Rotor 12 B 3147 073 CO Intermediate wheel 13 3147 074 CO Intermediate wheel chrono 14 3122 067 CO Third whee...

Page 20: ...wheel counter 30min 25 D 2020 191 G Counter train wheel Bridge 2h30 26 Train wheel bridge held by 2 screws 40000 250 Mark 2 4000 250 Screw 27 3622 039 Stator counter 28 3402 013 CO Counting wheel 1 10 s 29 3715 120 RK Rotor 30 3147 075 CO Intermediate wheel counter 1 10 s 31 2020 190 G Counter train wheel bridge 32 Train wheel bridge held by 2 screws 40000 250 Mark 1 4000 250 Screw 33 E 3016 029 S...

Page 21: ... grey coil core 4000 250 Screw 42 G 3603 089 Battery insulator 43 3601 134 Pusher contact spring 44 3612 218 Electronic module 45 Electronic module held by 6 screws 4000 248 Screw 46 4 screws 4000 248 for pressing the module on the coils 4000 250 Screw 47 2 screws 4000 248 for pressing the module on the 2 posts 3601 132 G Lateral bridle 48 Lateral bridle held by 1 screw 4000 250 4000 250 Screw 49 ...

Page 22: ...nda ch 4 2000 700 CO Main plate 56 J 3017 054 CO Setting lever 57 3001 046 Sliding pinion 58 3015 088 Yoke 3 positions 59 3905 063 Setting lever jumper 60 Lever held by 1 screw 4000 282 4000 282 Screw 61 K 3004 200 Corrector setting wheel 62 3004 200 Corrector setting wheel 63 3015 087 CO Setting wheel yoke 64 L ...

Page 23: ...n bridge held by 3 screws 4000 278 4000 278 Screw 71 M 2000 672 G Main plate retro 72 Minute plate retro held by 4 screws 4000 248 4000 248 Screw 73 N 3004 220 Tens indicator driving wheel 74 The short tooth of the tens indicator driving wheel must point to the center of the movement 3500 072 Tens jumper 75 2130 187 Tens jumper maintaining plate 76 Tens jumper maintaining plate held by 2 screws 40...

Page 24: ...Day rack 82 3406 031 Day rack lever 83 3147 066 CO Date corrector setting wheel 84 3507 059 CO Date corrector wheel 85 P 2130 191 Date indicator plate 86 3905 068 Date corrector spring 87 Date corrector spring held by 1 screw 4000 244 4000 244 Screw 88 3905 066 Day rack lever spring 89 Tensioning the spring arm 3500 068 Date jumper 90 3500 069 Day jumper 91 Tensioning the spring arm Q ...

Page 25: ...d of the teeth against the day came pinion while turning softly in counterclockwise direction 3004 212 Days driving wheel 98 Insert the tooth of the wheel in the flange gap while turning softly in counterclockwise direction to ensure correct position of the day finger 3401 086 FI Day indicator pinion 99 3147 062 Tens intermediate wheel 100 Arrow positioning radially outwards 3504 231 AD 1 A Tens i...

Page 26: ...m in position I calendar not in gear 60 s measuring interval for rate and consumption Typical consumption Maximal consumption 1 48 µA 2 00 µA Rate 10s M 20s M Lower working voltage limit 1 20 V Hold down the electrical module to allow the electronic flow Setting stem in position III 60 s measuring interval Typical consumption Maximal consumption 0 10 µA 0 30 µA ...

Page 27: ...ronic measurements 8040 N Coil resistance M1 1 50 kΩ 1 70 kΩ Coil resistance M2 1 68 kΩ 1 88 kΩ Coil resistance M3 1 68 kΩ 1 88 kΩ Coil resistance M4 1 68 kΩ 1 88 kΩ Coil isolation M1 M2 M3 M4 kΩ Signal generator 4 9 ms 8 Hz Lower working voltage limit M2 M3 M4 1 20 V Powered by TCPDF www tcpdf org ...

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