Looks superb - good job! Good to hear as well that Swiss 7750 version available.
Had another look at the gen at local AD this morning.
General points.
As previously mentioned, the colours need to be spot on - the dial needs to be a really deep blue and I think you've got that 99.9% spot on - don't be misled by the IWC website - the dial is not the bright blue colour it appears on there. White needs to be bright and clear - hard to tell from the pics above but looks pretty close. The lettering on your dial looks OK too - not too bold. The lettering on the 2 inner bezels does need to be bold and also really bright. Sharpness is critical - the lettering on the gen is razor sharp.
Specific points
The 2 markers at 12 are not aligned properly.
The markers at 3, 6 & 9 look narrow - hard to tell. On the gen, all the hour markers are the same width, some are longer than others but all same width but yours look narrower. Grooving needed on subdials at previously mentioned.
Would like to see the bezels when ready.
Also, what about the lume? As mentioned on some other posts here and on RWG, lume will be important - the gen is loaded with lume and this hopefully will be too.
Keep up the good work - watching this with interest!!
Thanks
Hilts.