Rolex Day Date Ref. 1810 rare waved Bark finish - 1970s only head.This is one of the coolest finishes Rolex ever endowed upon a Day Date in our opinion. The watch is in excellent vintage condition. Shows signs of polishing, but retains thick, sharp lugs, with a uniform finish. White original baton dial, all lume dots in place, features a Spanish day wheel calendar. Powered by the automatic Cal. 1555 movement. Unknown service history. Winds smoothly, date and day changes sharply at 12. Appears to be keeping a proper time.