A real mistery to me, all these 11063V's, Skippers, 11630 MH's with missing / incomplete / fallen off lume materials on the hour indices - especially puzzling if we think we get to see Carreras or previous Autavia a good 12 years older than these with gently faded but typically unbroken lume.
Yes those were not great times for Heuer but this seems to be a distinctive feature of those late-period Autavias only, the L5100's, non-Monza etc. do not show such failure.
Also for the same period, the peculiar inability to put the lume dot in the MH bezel insert properly centred: most often it is skewed on the right, more rarely on the left, most rarely of all it is really well centred.
Cheers,
Fabrizio