quattro[Moderator]
20676
Perfection ?
Is any word really needed here? Even I am captivated, although I'm usually not very attracted to steel watches.
This Patek Philippe ref. 570 in steel from 1949 is one of 5 known steel examples fitted with an indirect center seconds mechanism added to the existing 12'''120 subsidiary seconds register movement.
Furthermore, this watch is believed to be the only known ref. 570 to feature a dial displaying four Arabic numerals, an outer minute track and enamel baton indexes.
The case is 36,5 mm.
Best, Emmanuel

credit: hodinkee

credit: @magnusbosse

credit:
phillips (lot 104 at Phillips The Geneva Watch Auction: EIGHT, November 2018)
Below: John Goldberger, Patek Philippe Steel Watches, pp. 124-125

credit: John Goldberger