A7750 movement in BCE question

[cougaree]

Hi there,

I have to BCE here with A7750 movement. Both BCE are v2. The movements are serviced by different watchmakers. I've noticed that if I start the chronograph, on both watch, the large second hand will have a short momentary pause as the minute register advance. Is it normal? I don't believe I'm seeing this on my Skyland.

Any thoughts on this? Thanks!

[maxman]

I have not noticed this type of behavior In any of my chronographs. I have heard of It but no pause In any of mine. It does not sound like a big deal to me, good luck Mike

[bwhitesox]

You mean it pauses or skips a tiny bit as it just completes a cycle, If so this is normal on the Asian 7750's

[Bike Mike]

If it pauses, there could be too much pressure on the "spring" that engages the transfer gear, to move the minute sub dial hand. The "spring" I am refering to, is a little metal piece that is on the 60s chrono wheel.

[cougaree]

Thanks for everyone's response! Much appreciate it!

Mine pauses then skips a little bit around 58 second mark. Will it mess up the chronograph timing?

Thanks again!

[14060 or 16610?]

Agree with Bike Mike, the spring for the 30-minute wheel may need to be backed off. But it's also possible the 30-minute wheel is binding or not spinning as it should. Not likely though, if the movement has been serviced. Yes, if there is a slight pause (as the spring is overcome) it will obviously throw timing off by a fraction of a second. Not a huge deal, but I'm sure it would bug some individuals.

[cougaree]

What's weird about it though, my Skyland with A7750 does not have this problem, but the A7750 in both of my BCE does.

[14060 or 16610?]

That's just random coincidence. The basic A7750s are essentially the same, especially in those 2 watches.

[Bike Mike]

  On 4/3/2010 at 4:34 AM, cougaree said:

What's weird about it though, my Skyland with A7750 does not have this problem, but the A7750 in both of my BCE does.

Quality Control issue