A question about GP's chronographs

It would be most appreciated if someone could tell me if GP's chronographs are modular or integrated, and if they are modular, are they a GP module or someone elses? all information is very much appreciated.

thank you

Corby

and things differ from model to model.

To keep things simple, most GP chronographs are modular with either a GP or a Dubois Dépraz module. The base is always from GP.

I hope this helps.

MarkS

thank you for your info Mark, it was helpful indeed. Would you be able to tell me if there is a benefit to making a integrated chronograph to using a module?

ciao Troja,
without being too technical, i'd say that a a modular is somewhat easier to maintain and to apply to almost whatever pre-existing time-base.
Integrated ones need a dedicated project, and that's the reason why they're generally more expensive.
From a user point of view, i'd say they're equivalent.

A little hint to tell if a watch contains a modular or an integrated: check if the chrono push buttons and the winding crown are aligned horizontally.
If yes, it is most likely an integrated one. If not, it is a modular (usually the chrono buttons are above the winding crown).

I own a GP ww.tc which has a modular GP base+DD chrono module, it works smoothly and precisely.

ciao from Milano,
slide68

Thank you very much Slide, I appreciate your info. I didn't full understand what you were talking about in identifying an integrated movement, would you be able to elaborate on what you said, "check if the chrono push buttons and the winding crown are aligned horizontally.
If yes, it is most likely an integrated one. If not, it is a modular (usually the chrono buttons are above the winding crown)." Thanks again for your help!

Respectfully,

Corby

to understand what Slide packed in words :

I have found them on another forum (www.thewatchforum.co.uk) :

If you draw a horizontal line through the center of the crown, the pushers will be above that line. Hence, a modular chrono. The chrono is not integrated on the bridge side of the movement but on a module plate under the dial. Reason why the pushers are higher than the crown. The Kelek Technical drawing below shows that clearly.


Omega Dynamic Chronograph


Omega Speedmaster Automatic


Kelek 1896 Technical drawing


Here is a movement view of a modular chrono (a chronograph module on a separate plate married with an ETA 2892-2 base caliber):


Assembled movement


Top plate of the module removed, what you see here is the chrono mechanism


With integrated chronos, the chrono is integrated on the main bridge of the movement and visible from the movement side. This technical sheet of the Valjoux/ETA 7750 shows this clearly. On a watch fitted with a 7750 and a crystal on the movement side, this is what you will see :






Modules are most of the time hidden under the dial and not visible from the movement side.

Crystal clear ?

MarkS

I thank you both for helping to understand the difference between the modular and integrated. the pictures and the report you listed were a tremendous help Mark. Thank you both again!

Respectfully

Corby

ciao troja,
sorry for the delay....Anyway MarkS covered the topic in the best way !! (thanks )

Regards from Milano,
slide68