Yes, david..you're right that I made a comment on a thread where another forummer's IWC watch whose crown came off but I did say that I also own a Mk XVI which had no problems and worked beautifully so wat I said was IWC's QC is not very consistent..
wow cant believe you got a IWC, yes the black ceramic for their pilot series is real superb looking!
tog last time you just mention about IWC crowd drop out and QC issue etc.... :p
thanks ck for helping me out.
I think Peter is hentaming me on the Top Gun which uses a modified ETA 7750 not the Damasko with the in-house A35-1...
DK 10 is calibered by in-house A 35-1 movement 
Yes Peter, we all say things we sometimes have to take back.
I used to own a few chronos with 7750s and they had characteristics that I disliked i.e. a very wobbly rotor and hands that moved after the crown is pushed back in hence screwing up the perfect alignment of the minute hand viz-a-viz minute markers.
However I bought the Top Gun after trying out the above tests and found that the rotor wobble is much less pronounced, the minute hands did not shift at all when the crown was pushed back in after setting the hands and even the stem is rock solid unlike the previous 7750 powered watches I used to own in the TAG, B&R by Sinn, etc..
I suppose that IWC really does modify many of the parts from the standard ETA ebauches similar to Breitling......or they use the top grade ebauches
Another thing was that there were not many available options for a ceramic cased watch which I wanted badly.. the Ralph Lauren using JLC caliber couldn't be found.. the Rado ceramics had poor finishing & std ETA ebauches, Chanel's J12 design was too wimpish for me and AP ROO ceramic diver's price point way too high for me..
I know that I have to wait at least a year before the Omega Dark side of the Moon will arrive in Malaysia.. so in the meantime the Top Gun will have to cater to my desires....
But but but...you said you were ONLY going to buy in house calibers? 
