Chronograph problem

[RBR76]

I added a new watch to my collection last week. Its movement is ETA based and integerated with a chronograph module.

When i reset the chronograph, i noticed that the minute hand jerks forward a little.

Is this normal?

Is it due to the integerated chronograph module?

[kilyung]

What watch is it?

[RBR76]

Originally Posted by kilyung

What watch is it?

Ball Trainmaster Cannonball

ETA 2824-2 with chronograph module.

25 jewels in base movement and 24 jewels in module.

[RBR76]

I ran the chronograph many times today and observed the accuracy of the watch.

The minute hand and second hand are on time.

False alarm? No cause for concern?

But I did see the minute hand jerk a little as i reset the chronograph.

Is this the normal behaviour of a chronograph module?

[Dan Pierce]

Originally Posted by RBR76

I ran the chronograph many times today and observed the accuracy of the watch.

The minute hand and second hand are on time.

False alarm? No cause for concern?

But I did see the minute hand jerk a little as i reset the chronograph.

Is this the normal behaviour of a chronograph module?

It might be because of the module vs an integrated chrono movement. But if the accuracy is not affected then no worries or cause for concern.
dP