A Daytona you can see through

Of everything Rolex showed in April, this is the one that will still be discussed in five years. The new Daytona pairs a case largely in steel with a platinum bezel ring, a dial in white grand feu enamel, and a caseback you can see through.

Why the caseback matters

Rolex does not do display casebacks. The Oyster case is a sealed system and the closed back is part of the argument — it is how the brand has talked about itself for a hundred years. Putting a window in the back of a Daytona, in the same year it celebrates the centenary of that sealed case, is either a contradiction or a very deliberate piece of theatre. Probably the second.

The dial

Grand feu enamel is powdered glass fired onto a metal base at temperatures high enough that a meaningful share of dials crack in the kiln and are discarded. The result is a white with a depth that lacquer cannot reach and that does not age or yellow. It is a technique associated with dress watches and independents, not with a steel chronograph built for a racetrack.

What it signals

Rolex has spent five years moving upmarket in materials while holding the same silhouettes — platinum bezels, new alloys, now enamel. This is the clearest statement yet of where that is going. Expect it to be extremely difficult to buy, and expect the secondary market to price the caseback rather than the enamel, because the caseback is the part that photographs.