Rolex Day-Date 18079

A checked version of this page, approved on 10 August 2026, was based on this revision.

Day-Date -> 18079

The 18079 is the bark-finish Day-Date in white gold, the scarcest finish of the 5-digit generation in the scarcer of its two golds. Bezel and bracelet centre links carry the coarse vertical texture Rolex called écorce, the case flanks stay polished, and everything behind that is the 18039: 36mm President case, caliber 3055, sapphire crystal, single quickset. Sotheby's put the balance plainly in a catalogue note on the 1807X group, observing that the vast majority were built in yellow gold. Bark in white gold is a small subset of a finish that never sold well to begin with, and the examples that reach the major houses are usually the ones where the texture meets a strong dial.

Core facts

detail	value
reference	18079
family	Day-Date
production	circa 1977/78 to 1988
movement	caliber 3055, 27 jewels, 28,800 vph, single quickset (date); hacking seconds
case	36mm 18k white gold President
crystal	sapphire with Cyclops
bezel	bark (écorce) finish in white gold
bracelet	President in white gold with bark-finished centre links, concealed Crownclasp
dial	silver sunburst, burgundy Stella with diamonds, black diamond-set
crown	Twinlock screw-down
siblings	18078 (yellow-gold bark), 18039 (white-gold fluted), 18049 (white-gold diamond)
predecessor	1807
successor	caliber-3155 bark generation from 1988 (18248 in yellow gold)

Where it sits in the line

The 5-digit Day-Date splits by finish and then by metal. Bark is the finish; the closing digit is the metal. Phillips spelled the rule out in the catalogue essay for a white-gold bark example, noting that the final digit — a 9 in this case — indicates 18k white gold. That makes the 18078 the yellow-gold bark and the 18079 its white-gold twin, alongside the fluted 18039 and the diamond-set 18049.

Bark descends from the 4-digit 1807 and belongs to the same 1970s appetite for worked gold surfaces that produced the Florentine 1806 and the Morellis 1811. It is a coarse vertical woodgrain, unmistakable next to the fine cross-hatch of a Florentine bezel. The finish drew few buyers when new, which is why the 18078 is already the scarce member of the yellow-gold set, and the white-gold 18079 sits scarcer still. Everything mechanical is shared with the 18038, which holds the generation's account.

Production outline

The reference belongs to the 180XX group introduced in 1977, when sapphire crystals and the caliber 3055 replaced the acrylic-and-1556 4-digit Day-Dates, and it runs to 1988 and the caliber 3155.

Documented case numbers cover the first half of the span. Phillips catalogued a 1978 example at 5,257,008, Sotheby's a circa-1979 example at 6,043,469, and Antiquorum a circa-1982 example at 7,294,504. No Rolex production figure has surfaced, and the scarcity collectors cite for the reference is drawn from how rarely it appears rather than from factory data. Within the run it is a stable, single-spec watch whose variety lives in the dial.

Movement notes

The 18079 runs the caliber 3055: 27 jewels, 28,800 vph, hacking seconds, free-sprung Microstella balance, chronometer certified, with quickset on the date only. The day advances only by running the hands through midnight, and stays that way until the caliber 3155 arrives in 1988 with the double quickset. The bark changes the surface of the gold and nothing under it. The Reference:Movements page holds the caliber lineage and the 18038 entry covers the 3055 in detail.

Dial map

A circa-1979 bark 18079 with a diamond-set black dial — the middle of the reference's documented range.

Three configurations carry the documented record, and they map the reference's range.

The plain expression is a silver sunburst with baton indexes, catalogued by Antiquorum on a circa-1982 example that came with its original box and papers. At the other end sits the burgundy Stella: an enamel-lacquered ground with round-cut diamond hour markers and baguettes at six and nine, on the 1978 example Phillips sold from the Glamorous Day-Date sale, and the strongest result the reference has recorded. Between them is the diamond-set black dial on the circa-1979 example Sotheby's catalogued in Geneva in 2025.

The pattern is the one that governs the yellow-gold 18078 as well. A bark case is bought as a pairing, and the dial is what separates one example from the next. The deeper dial taxonomy for the President line sits on the 1803 entry.

Case, bezel, crystal, and crown

The case is the 36mm white-gold Oyster shared across the 5-digit Day-Date, with a screw-down caseback, a Twinlock screw-down crown and a sapphire crystal with Cyclops. The defining feature is the bark bezel, a coarse vertical woodgrain worked into the white gold. Case flanks and lugs stay polished, so the texture reads as a deliberate band framing the dial rather than an all-over treatment, and the contrast between matt bark and polished flank is sharper in white gold than in yellow.

Polishing is the enemy of a bark case, since the texture is cut into the gold rather than applied to it, so the crispness of the woodgrain is the first thing to read on any example.

Bracelets, end links, and clasps

The 18079 wears the white-gold President with bark-finished centre links and the concealed Crownclasp, so the texture runs unbroken from the bezel down the length of the bracelet. That continuity is most of the reference's look. A bark 18079 whose centre links have been replaced with plain polished ones during service is a diminished object, and the complete original combination is what the auction results reward. Antiquorum weighed one complete white-gold example at 146.2 grams.

As with any President, a clasp date code dates the bracelet rather than the watch head, and the cross-family detail sits on Reference:Bracelets.

Special branches

Bark with a Stella dial

The 1978 burgundy-Stella 18079: lacquered dial, round diamond markers with baguettes at six and nine, bark bezel and bark centre links.

The burgundy-Stella 18079 Phillips sold in Geneva in 2015 is the reference at full stretch: a white-gold bark case and bracelet, an enamel-lacquered burgundy dial, round diamond markers with baguettes at six and nine. It brought CHF 56,250 against a CHF 25,000–50,000 estimate, more than double what a plain bark example of the same period reaches, and it remains the benchmark for what the combination can do.

Full sets and delivery dates

The circa-1982 bark 18079 with its original fitted box, certificate of origin and instruction booklet.

The circa-1982 Antiquorum example arrived with its original fitted box, reference 71.00.04, an instruction booklet and a certificate of origin dated December 1988 — six years after the case was made. Long gaps between manufacture and retail sale are not unusual on a slow-selling finish in a slow-selling metal, and the paperwork dates the sale rather than the watch.

Auction record

The 18079 appears rarely enough that three lots carry the record, and they separate cleanly by dial. The burgundy Stella took CHF 56,250 at Phillips in 2015. A plain silver sunburst with box and papers took EUR 28,600 at Antiquorum in Monaco in 2022. Sotheby's offered a diamond-set black dial in Geneva in November 2025 at CHF 12,000–18,000, with no result published. That spread puts a standard white-gold bark example at roughly the level of a comparable yellow-gold 18078, with the premium arriving only when the texture is paired with a lacquer or gem-set dial. The taste remains period-specific and divisive, which is part of why the ceiling sits where it does.

date	house	configuration	result
May 2015	Phillips Geneva, Glamorous Day-Date, lot 56	burgundy Stella dial with diamond markers, 1978, case 5,257,008	CHF 56,250
Jul 2022	Antiquorum Monaco, lot 324	silver sunburst dial, c.1982, case 7,294,504, box and papers	EUR 28,600
Nov 2025	Sotheby's Geneva, Important Watches Part I, lot 119	black diamond-set dial, c.1979, case 6,043,469	est. CHF 12,000–18,000, result not published

Related references

Day-Date 18078 — Yellow-gold bark (1977–1988)
Day-Date 18039 — White-gold fluted President (1977–1988)
Day-Date 18049 — White-gold diamond bezel (1977–1988)
Day-Date 1807 — Bark 4-digit President
Day-Date 18038 — Cal 3055 President (1977–1988)
Day-Date 18048 — 1977–1988
Day-Date 18248 — 1988–2000