Vintage Chronograph - Rolex Pre-Daytona 6238

The Rolex Pre-Daytona 6238 is often considered as the starting point of the Daytona line, as it displayed the modern-looking dials that can then be found in the first Daytona, the reference 6239. The 6238, nicknamed the Pre-Daytona, was launched in the early 1960s, only three years before the introduction of the reference 6239 – the first actual Daytona – that Ben described in depth here.

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The dial layout of these two references is almost identical, and they are powered by the same Valjoux 72; the true difference comes with the introduction of the fixed tachymeter bezel for the Daytona, which is more sporty than the smooth bezel of the 6238. The reference 6238 was only produced until 1967, for a total output believed to be around 1,500 pieces – quite a low number at Rolex's scale of manufacturing.

Moreover, the vast majority of  those came with silver dial; the rarity of the black dial made it a key piece in a Rolex collection, explaining a 3 to 4x multiple from one dial to the other.