tick tock doctor
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Servicing of a Chronograph Module.
To my knowledge there are no available parts supplied for these modules so taking one apart does have its risks. Taking your time to focus is important, especially working on movements and modules were parts are strictly limited.
So here is a look at a module manufactured by Dupois Depraz.
Care should be taken not to DAMAGE the chronograph cannon pinion when separating. It is also IMPORTANT to have the chronograph mechanism in the ON / or RUNNING position for disassembly and assembling.
Oiling chart.
Disassembly begins after making sure the chronograph is engaged. Then remove the Chronograph mechanism cover.
The minute counter driving wheel friction spring, Chronograph second wheel, and Hammer operating lever are next to remove.
Hammer operating lever center, and the minute counter driving wheel friction spring.
Flyback yoke jumper
After removing Flyback yoke jumper, Flyback yoke. The wire spring is the lock spring.
Removing parts as they are exposed.
Continue removing parts.
Minute train bridge assembly and Fly-back yoke bolt removed.
Now to clean everything.
Eccentric screw.
If there is too, much play with respect to heart-piece of minute counter wheel, you can open the flexible hammer arm.
Hope you enjoyed looking.
Kind regards
Anthony
Servicing of a Chronograph Module.
To my knowledge there are no available parts supplied for these modules so taking one apart does have its risks. Taking your time to focus is important, especially working on movements and modules were parts are strictly limited. So here is a look at a mo...
Thanks for taking the time Anthony!
I love these posts. Not because I intend to venture into watch repair/servicing myself but I simply find it amazing to have these peeks into the inner wonders of our watches. Keep it up :) Nikolaj
Great explanation illustrated by pictures ...
Those modules are very tricky and when Omega started using those (Speedmaster Reduced) the maintenance was to replace the module. My watchmaker's team do exactly what you did and they can repair those modules without any major problem. Congratulations, Ni...
Do you and your team...
Hell o nilomis Have any thoughts on if these modules are bad for movements. Kind regards Anthony
I don't ...
I have one or two watches with the DD module that already went for maintenance (by time, not because they were with issues) and I had no issues with watches with those modules. My watchmaker (ex Omega, 20+ years of experience) states that the problem with...
I always enjoy your posts...
I am curious how many different oils are used in the movement?
Wonderful report! ....
... is this module set atop a 2892? Looking at the "date funnel", I assume it is the module that was replaced by the big date version rather soon (with flyback, and sometimes even with annual calendar). Regards, Marcus
Thank you Marcus, glad you enjoyed....
These modules can be used on many different calibers including ETA 2892. And used by many different manufactures, I have seen them in Tag Heuer, Omega, and Audemars Piguet. To my knowledge these are manufactured with a variety of complications. This one h...
