6238, 'Pre-Daytona' Chronograph, Black Galvanic Dial, Steel Octa Lune Utilizing a high-tension polyurethane membrane

Utilizing a high-tension polyurethane membrane

and ROCS upper half

The Trio was heavily influenced by science fiction

With all the weight

fewer than 100 examples were ever made

6238, 'Pre-Daytona' Chronograph, Black Galvanic Dial, Steel Octa Lune Utilizing a high-tension polyurethane membraneA ref. 6238 Pre Daytona featuring a rare and highly coveted black dial. The 6238 was fitted with silver, grey, and black dialsthe latter of which is by far the least common and most desirable. This was last Rolex to simply say 'Rolex Chronograph' on the dial at 12. In addition, the dial is monochromatic, with a sterile steel bezel, and tachymeter on the dial. All of these austere charms changed in the following ref. 6239 Daytona. This example is