What is that component?

Perhaps another easy one - this jeweled spring bar - plays a very important role - what?

Hammer for Minute Repeater. nt.

Good answer.

Nope. It's not that exciting - but important>

Perpetual Calender century slide thing?

I don't know what's the correct name but I think it's the spring bar that holds the century slide in place in the Perpetual Calender module.

Kind regards,

Clemens

Rocking lever from a perp. calender ? >>

I do not know for sure what it is called but it controls the wheels of the calender (I think it is called a rocking lever).
Except the one I mean does not have the jewel though...

Yes - it ensures proper position of the DAY hand>

Nicky -

Yes. You got it.

The 7-pointed "star" wheel on the right is the "day wheel". It has 7 teeth for the 7 days of the week. As it rotates, it enables the hand that is fixed to the center to be positioned on the appropriate "day" in the sub-dial at 9:00. The Jeweled, end of the spring bar - fits between the teeth of the day wheel to properly, "snap" the wheel into position - centering the hand of the day display over the "MON, TUE, WED, THU...." as they read on the dial...

Thanks - I thought it might be from the Portuguese

my picture is from the older Grand Complication.

A so this is for the days!

Thanks for the quiz, I really like it as it makes us think more about the movements :-)

great post (again)

Richard.....like Nicky (and I am sure others too) it is great to think about the individual components of the movements in more detail.

Andrew

At least I had the perpetual calender right :-)

Great idea this type of posts!

Kind regards,

Clemens

ditto that comment. nt

Another picture I just found of it....>>

and the article with Kurt Klaus to go with it...

www.iwcforum.com/Articles/2003/KlausText.html