The “Oyster Split” Daytona is a reference to the gap between the four lines of text on the dial of the watch. If you notice on the present timepiece, there is a distinct gap between the first two and the second two lines of the 4-line dial. “Oyster Split” dials are seen mainly on gold Daytona models and is among the rarest of the many Daytona variants.

Launched in the 1970s, the reference 6265 is the sister reference of the 6263. Inheriting attributes of reference 6240, the chronograph bears the “Oyster” designation on the upper-half of its dial and is built with screw-down pushers, a screw back and screw-down crown.
The chronograph was made with a slightly wider case, giving the wristwatch a more athletic feel than earlier references. The Ref. 6265 was produced from 1971 right up to 1988 and represents the last of the manual-winding Daytona models.