This is now the 5th example I've seen with a black dial.
It came up overnight in my Buyee saved search notifications - not on the usual 'Orient + クロノグラフ', nor 'Indianapolis 500', but the model number J39701-70.
Google translates the lengthy title as follows:
1 yen working good Indianapolis 500 QZ J39701-70 black dial chronograph day date smoseco men's watch NBY0126000KYM. 'QZ' is probably an abbreviation for quartz; not sure of the meaning of 'smoseco' or significance of the alpha-numeric reference at the end, but note the complete absence of the word 'Orient'.
https://buyee.jp/item/yahoo/auction/g1090193202
There isn't much in the way of a description, merely a condition ranking: (4) Good product with some damage and dirt. However there is a gotcher. The seller states the wrist size is only 15 cms. Studying the last two photos, I can count 9 links on one side of the bracelet and 10 on the other (total 19), compared to the full complement of 11 + 12 = 23 links, meaning that 4 adjustment links have been removed. Pity, because I need the full complement of 23 links to fit my 7½" wrist comfortably. Otherwise it means having to resort to fitting longer clasp covers and / or clasp extenders.