Reference:18078: Difference between revisions

|description=The Rolex 18078 is the yellow-gold bark-finish (écorce) 5-digit Day-Date President — caliber 3055, sapphire crystal, circa 1977-1988. The scarce 5-digit successor to the 4-digit bark 1807, collected as a bark case paired with wood, stone, Stella or Khanjar dials.

The 18078 is the bark-finish Day-Date of the sapphire-crystal era, the 5-digit successor to the 4-digit bark [[Reference:1807|1807]]. It is a yellow-gold President whose bezel and bracelet centre links carry the coarse vertical "bark" texture, écorce in French, while the case flanks stay polished. Caliber 3055, sapphire crystal, made from the late 1970s to 1988. The bark drew few buyers when new and Rolex built it in small numbers, which makes it the scarcer of the 5-digit finishes today. The examples that command attention pair the bark case with an exotic dial: wood, hardstone, lacquered Stella, or an Omani Khanjar.

| champagne and silver stick most common; wood/burl, hardstone, Stella, Roman, diamond-index, Khanjar

The 18078 is the bark member of the first 5-digit Day-Date generation, the sapphire-crystal continuation of the bark thread that runs from the 4-digit [[Reference:1807|1807]]. The 5-digit references split by metal and finish: the [[Reference:18038|18038]] is the yellow-gold fluted volume reference, the [[Reference:18048|18048]] carries the diamond bezel, and the bark follows in yellow gold as the 18078 and in white gold as the 18079. The bark is a coarse vertical tree-bark texture, distinct from the finer cross-hatched Florentine of the 1806 and the watered moiré Morellis of the 1811.

Everything behind the finish is 18038, down to the case, the caliber 3055, the sapphire crystal and the President bracelet. The bark never caught on the way the fluting did, so the 18078 is the scarcest of the standard 5-digit finishes, and the textured look that limited it when new is most of its appeal now.

The 18078 ran from the late 1970s, when the 5-digit references took over with sapphire crystals and the caliber 3055, until 1988, when the caliber 3155 arrived. The bark finish continued in small numbers into the caliber-3155 era, but it is most associated with this 18078/18079 generation. No Rolex production figure has surfaced; the scarcity collectors cite is drawn from how rarely the reference appears rather than from any factory data. Within the run it is a stable, single-spec watch, and its variety lives in the dial.

The 18078 wears the President bracelet, reference 8385, with the concealed Crownclasp and the solid links of the 5-digit era. The bark carries onto the bracelet's centre links, so the texture runs unbroken from the bezel down the length of the bracelet. That continuity is much of the reference's look, and a bark 18078 that keeps its original bark centre links rather than service-replaced plain ones is the complete expression of the watch. As with any President, a clasp date code dates the bracelet, which may be older or newer than the head, and the cross-family detail sits on [[Reference:Bracelets]].

The bark 18078 is bought and sold as a case-and-dial pairing rather than as a standard reference with dial options. Wood and burl grounds are the configurations the major houses catalogue most often, and on a reference this scarce the dial is what separates one example from the next.

A bark 18078 with the green Omani Khanjar emblem and an Arabic day disc, catalogued by Phillips at the Geneva Watch Auction XVIII in 2023, places the reference in the Gulf special-order tradition alongside the platinum Arabic Day-Dates.

The 18078 is thinly represented at the major houses, and where it appears the dial usually drives the lot. Antiquorum sold a tiger-eye example in Hong Kong in 2015 for HKD 237,500 and an onyx example with a bark-and-diamond bezel in Geneva in 2016 for CHF 18,750. Sotheby's catalogued a burgundy-Stella diamond example in 2018, which went unsold, and a birch wood-dial example in 2023. A blue-Stella diamond 18078 in Hong Kong in 2024 shows the kind of result the special dials reach: the lot page reads unsold, while a Sotheby's editorial article records it selling for HKD 336,000. A plain champagne or silver bark 18078 sits at a more modest level, roughly the low-to-mid five figures in dollars, at or slightly below a comparable plain fluted 18038. The textured look remains a divisive, period-specific taste. The premium appears when the bark is paired with a wood, stone or Stella dial.

* [[Reference:18028|Day-Date 18028]] — 1977–1988

* [[Reference:18038|Day-Date 18038]] — Cal 3055 President (1977–1988)

* [[Reference:18048|Day-Date 18048]] — 1977–1988

* [[Reference:19018|Day-Date 19018]] — Oysterquartz President (1977–2001)

* [[Reference:18208|Day-Date 18208]] — 1988–2000

* [[Reference:18238|Day-Date 18238]] — 1988–2000