This 1988 black Floating Dial Daytona ref. 16520, is one of the rarest sapphire glass Cosmographs ever produced, with Mk I tritium dial and extremely rare '225' unit bezel. 

Only in production for one year; (1988-1989), with the noticeable gap between the text 'Officially Certified' & 'Cosmograph', our L24**** example is in remarkable condition, offering a gorgeous patina and nice thick case lugs. Just back from a sympathetic service at Rolex, this important Cosmograph is under Rolex's international warranty until July 2026.

Powered by Zenith's El Primero Chronograph calibre 4030, waterproof to 100m and fitted to the correct year stamped, all satin finish '78360' (pre Fliplock) Oyster bracelet. Presented with its Rolex box, Cosmograph Daytona instructions, booklets, red swing tag, 88-89 calendar card, and official 2024 Rolex service history.