Heuer Carrera 2447S

Silver dial, Valjoux 72, thirty-six millimetres. Jack Heuer drew the 2447 in 1963 for men who timed laps at circuits, and its whole achievement is what he left off. No tachymetre crowding the edge. No text past the necessary. Registers sunk just deep enough to read at a glance, which was the entire brief, and nobody has improved on it in sixty years of trying.

The name came from a road race across Mexico that ran five times between 1950 and 1954 and was then abandoned for killing people. Heuer put it on a watch nine years after the last one finished. This is the earliest case we can find of the industry naming a product after something it had already outlived, and the practice has not slowed down since.

The specimen on our desk is case number 102468. It carries its maker’s name three times, once inside the screw-down back where nobody was ever meant to look. That hidden interior reads Heuer Leonidas and so does the movement bridge. The dial reads Carrera Heuer below twelve. Heuer merged with Leonidas late in 1964 and examples from earlier that year say Ed Heuer & Co instead, so a back stamped with both cannot have been closed before the merger. The watch dates itself. We just read it.

Then there is the letter, and the letter is the whole story.

Heuer’s suffixes described the dial and nothing else. S was silver. N was noir. Paired, they covered the two-tone combinations: NS for a black dial with silver registers, SN for the reverse. A D meant a decimal scale, a T a tachymetre. This was filing. Its entire purpose was telling whoever packed the box which dial was inside it.

Sixty years on, that clerical shorthand is the single largest determinant of what one of these is worth, and the four digits in front of it are close to irrelevant. This example sold at Bonhams in Monte Carlo on 11 May 2012 for three thousand euros including premium. In 2024 Sotheby’s catalogued a 2447NS, case number 94033, also circa 1965, also a Valjoux 72, at twenty to forty thousand dollars. Twelve years and two markets sit between those figures and they do not divide cleanly. But the two watches share a movement, a case and a year. What separates them is which of two colours got printed on the registers.

Collectors will tell you this reflects rarity. Sometimes it does. Mostly it reflects that a stock clerk in Bienne wrote a letter on a form and half a century later a market decided that letter was the watch.

We tested the chronograph against a phone stopwatch. The phone won, as it has every day since 2007. The men who timed laps are gone and the circuits time themselves now, to the thousandth, with transponders. Every function this watch was built to perform has been absorbed by objects that do it better and cost nothing.

What has not been absorbed is the dial. Still the cleanest chronograph layout of its decade. Still legible at a glance in a way most screens, with their infinite budgets for legibility, are not. Ours runs nine seconds fast per day. We know because we timed it. With the phone.