Rolex Daytona
Original series

Years
Reference
Calibre
VPH
Bezel
Oyster
Notes/Features
1963–69
6239
722, 722-1
18,000
Engraved (stainless steel)
No No
Earliest model carries extra tachymeter engraving at 275 units/hr.
1965–69
6240
722, 722-1
18,000
Black (acrylic inlay)
Yes Yes
First appearance of optional metallic dial finish.
1965–69
6241
722, 722-1
18,000
Black (acrylic inlay)
No No
All variants include "Daytona" printed on dial.
1970
6262
727
21,600
Engraved (stainless steel)
No No
Produced for one year only.
1971–88
6263
727
21,600
Black (acrylic inlay)
Yes Yes
-
1970–72
6264
727
21,600
Black (acrylic inlay)
No No
-
1971–88
6265
727
21,600
Engraved (stainless steel)
Yes Yes
-

Question: What was the successor of the Rolex Daytona 6239, and what were some of the improvements over the predecessor?
Answer: Rolex Daytona´s 6239 were succeeded by the 6241, which replaced the engraved stainless steel bezel with a black acrylic bezel.