I was fortunate to find a 16660 with matte transitional dial (flat tritium markers sans rimming). I know these are hard to find as most have had their dials exchanged with the modern glossy/WG indices style.

I would really like to see pics from other owners, as I will wait quite sometime to receive this watch.

Also, does anybody know the period of which this model was avaliable prior to introducing the modern dial? 1978-1982 or so?