How to assemble and set a chronograph watch

Chronograph with minute and hour register

The Chronograph 72 differs from the Calibre 23 (instruction no. 2) only in that it has a pre-installed time-counting mechanism.

Disassembly Procedure:

To reach the time register mechanism,
First, disassemble the watch into the fourth operating stage 1 (see caliber 23),
The interrupter 8640 and its screws must be removed.

8760 Friction Spring for Hour Wheel Register
8620 Register Wheel Bridge
8600 Register Wheel
8750 Transmission Car Play Limiter Arch
8610 Conduction carrying arm
8630 Catch wheel pinion
8681 Hours Heart Peace Lever Bridge
8740 Out spring
8700 Pinion Rod
8650 Outlet

Then remove the dial side time register mechanism components in the order of time heart piece lever 8680.

Check the components for cleanliness and wear.

Assembly Instructions:

Once the movement has been completely disassembled,
First carry out operation steps 1 to 11 (see Catalogue 23).
Once the interrupter 8640 and its screws are installed,
Install the dial side time register device components in the following order:
8650 Outlet
8680 hours heart piece lever
8681 hours Heart Peace Lever Bridge
8700 pinion rod
8740 Out spring
8630 Catch Pinion
8610 Transmission Locker and
8720 That spring
8750 Transmission Wheel Play Limiter Arch
8600 register wheel
8620 Bridge Register Wheel and
8620 Friction spring for resistor wheels

Testing and Lubrication Method:

Set the mechanism to the zero position and make sure that the central chronograph wheel and the register wheel are blocked.
The minute register wheel has a small amount of play (the striker is not touching the heart piece at the zero setting).
The contact of the time heartpiece lever is regulated by the eccentric 8780.
It is about contact between the transport arm pinion and the register wheel due to the eccentricity of the transport arm contact 8791.
The surface of the heartpiece lever during contact with the heartpiece should be lightly lubricated.
The contact points of the hour register wheel and the friction spring for pivoting the hour hand register wheel should be lubricated.

8600 On-board Time Register Wheel
8610 Mounted Transfer Arm
8620 Time Register Wheel Bridge Pinion
8630 Drive pinion
8640 Interrupter
8650 Installed Outlets
8680 Installed Time Heart Piece Lever
8681 Hours Heart Peace Lever Bridge
8700 Pinion Rod
8720 Carrying Spring Arm
8740 Outlet Spring
8750 Transmission wheel play limiter arch
8760 Friction Spring for Time Register Wheel
8780 Eccentricity
8791 Eccentric carrying arm contact
56810 Carrying arm screw
58620 Time Register Bridge Screw
58640 Breaker screw
58680 Time Heart Piece Lever Screw
58681 Time and Heart Piece Lever Bridge Screw
58700 Pinion Rod Screw
58720 Carrying arm spring screw
587201 Carrying arm spring support screw
58740 Spring Screw
58740' Spring Safety Screw
58750 Screw for transmission wheel play limiter.
58760 Screw for Time Register Wheel Friction Spring

Previous parts and screws,
It's on page 5 of this manual.
Movement screws,
Chronograph mechanism,
And the matching with the components of the time register mechanism is
It is shown on page 6 of this manual.

Minute hour register and calendar movement chronograph

The chronograph 72c is
Caliber 23 (Instruction Book No. 2) only in that it has an hour register and a calendar mechanism.
is different from.
The hour register is the same as that of the calibre 72 with only a few components changed.

Disassembly Procedure:

To reach the calendar mechanism,
Follow steps 1 to 4 (see Catalog 23)
First you have to disassemble the watch.
The device can be disassembled without any special instructions.
Do not neglect to check the cleanliness and wear of the components.

Assembly Instructions:

There is no particular difficulty in assembling the device.
Note the following details:
Date Star Catch Wheel 2556 (Sketch)
The identification mark E is the Daystar Catch Wheel 2560.
It is located opposite the F mark.
In reality it must be placed on a line connecting the centres of the two wheels.

Testing and Lubrication Method:

Bring the winding shaft to the manual setting position,
Test day and date switches that must occur at roughly the same time.
Use the compensator to turn on the switch and check the switching.
Oil the star block as well as the latter pivot point.
Apply oil to the sliding surfaces of the spring and block.

Setting up features and calendar structure

The date hand on the dial,
Hour and minute hands pointing to 12 o'clock,
Once you have set the small second hand,
Turn the winding stem until the disc starts to move forward.
While Striker is pressed against the Heart Piece by pressing the button,
Central second hand and
Place the two register needles in the zero position.
Set your watch to the correct time (note the process where the hands are set to indicate zero hours),
Use the correction buttons to set the calendar movement.
The correction button may not be pressed during the automatic changeover from 8 p.m. to 2 a.m.

In this caliber,
Button A adjusts the date hand and buttons BC and month indication with a light touch.
Use heavy pressure to adjust the day of the week disc.

2551 Calendar Plate
2562 Moon Star Wheel
2575 Date Block Spring
2556 Star Star Driving Car
2566 Date Corrector
2576 Date Jumper Spring
2557 Date Star Wheel
2567th day revised
2577 Day Jumper Spring
2558 Double Time Wheel
2568 Moon Corrector
2578 Moon Jumper Spring
2560 Daystar Drive Wheel
2572 Date corrector spring
2580 Moon Correction Spring
2561 Daystar Wheel
2573 Sun Block Spring
2583 Moon Block Spring (2575-2583 Functional Joint Spring 2)
52551 Calendar Plate Screw
52556 Datestar driving wheel screw
52560 Daystar driving wheel screw
52561 Daystar Wheel Screw
52562 Moon Star Wheel Screw
52566 Date correction screw
52566 ' Support screw for date correction
52567 Day Corrector Screw
52568 Moon correction screw
52573 Day Jumper Spring Screw
52573 ' Jumper spring support screw
52576 Date Jumper Screw
52577 Day Jumper Screw
52578 Monthly Jumper Screw
52580 Moon Orthotic Spring Screw
52583 Monthly Jumper Spring Screw

The original components and screws are
It's on page 5 of this manual.
Wheel train for watches,
Chronograph mechanism,
Time register device,
And the matching of the calendar mechanism parts and screws,
In this manual
Shown on page 6.

Chronograph, calendar and moon phase mechanism with minute register

The 88 chronograph is
Time registers,
The only difference is that it has a built-in moon phase display.
Caliber 23 (Manual No. 2)
is different.
The mechanism of the time register is
It is the same mechanism as in the caliber 72 or 72c.
Only a few components have been changed,
The calendar mechanism is identical to that of the caliber 72c.

Disassembly and assembly instructions:

To reach the moon phase mechanism,
Work steps 1 to 4 (see Catalogue 23)
First you need to disassemble the watch according to the instructions.

Without special instructions,
The mechanism can be disassembled and assembled.

Testing and Lubrication Method:

Move the winding shaft to the manual setting position,
Test the moon phase star switching.
Use a compensator to check this function.
Lubricate the moon phase rocker pivot points.
Lubricate the spring's sliding points.

Functions and settings of the moon phase mechanism

After the dials and hands are set,
Function of the calendar mechanism (see Catalogue 72c)
Check the
Set the moon phase according to the calendar.
The AD button is
Adjust the moon phase disc with light pressure,
Press to adjust the date display.

In this caliber,
Weekday, month, and date/time correction buttons
From 8 p.m. to 2 a.m.
The date from 10:00 to 14:00 corresponds to the moon phase,
Do not press the automatic switch.
2587 Moon Phase Star Wheel
2590 Moon Phase Compensator
2588 Moon Phase Jumper Spring
2591 Moon Phase Rocker Spring
2589 Moon Phase Carrying Arm
2654 Bearing rod for moon phase rocker
52588 Moon Phase Jumper Screw
52590 Moon Phase Correction Screw
52591 Moon Phase Carrying Arm Screw

Watch Work Wheel Train,
Chronograph mechanism,
Hour register,
To check the parts and screws of the moon phase mechanism,
In this manual
Please see page 6.