THE “RAIL” DIALS EXPLAINED

THE “RAIL” DIALS EXPLAINED

The purpose of this article is to explain the meaning of the term “RAIL,” a term used to describe a specific type of dial graphic found on certain Rolex references. The coining of the term RAIL, whose originator remains unknown to this day, essentially derives from the observation of the inscription “Superlative Chronometer Officially Certified” on some Rolex dials. If we look closely, between “Superlative” and “Chronometer,” as well as “Officially” and “Certified,” we notice that the characters are unusually spaced, forming, in fact, a kind of “RAIL” between the upper and lower text.

Rail dials are of significant interest to collectors: they are rare and produced in limited numbers. The batches of serial numbers historically suitable to this type of dial are restricted. The most notable references that can feature “RAIL” dials are: 1655, 1665, 16550, and 16570.

A “RAIL” dial on a Rolex Seadweller 1665

It is commonly believed that “RAIL” dials were produced exclusively for Rolex by the subcontractor STERN FRERES. The identifying hallmark of STERN FRERES (a small star) can indeed be found on all dials considered genuine “RAIL” dials. STERN FRERES was a Swiss dial manufacturer active in the ’60s and ’70s. The company specialized in producing high-quality dials, collaborating with various watch brands. Although not widely known to the general public, they were an important supplier to some renowned Swiss watchmakers.

RAIL dials from 1665, 1655, and 16550, all with the STERN FRERES identification mark

Now, here is a brief photo gallery of some beautiful watches (courtesy JATUCKA) with “RAIL” dials:

This article was written and published by me on Roberto “Jatucka” Randazzo’s website in 2019. I thank Roberto for allowing me to add it to the blog on my website.

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