Rolex Datejust 1601

Reference:1601

Datejust → 1601

Fratello dates the Datejust 1601 to 1959. It is the fluted-bezel member of the four-digit Datejust generation, with a slow-set date and the Cal. 1565/1575 movement family. The five-digit 16014 brought the quickset date in 1977. The 1601 is usually described as a 36 mm watch, though auction catalogues record 34.5 mm and 35 mm measurements as well.

Core facts

Detail	Evidence
Reference	1601
Family	Datejust
Introduction	Fratello dates the 1601 to 1959. Monochrome gives 1959 or 1960 as its likely introduction and 1981 as its discontinuation date.
Movement	Cal. 1565, followed by Cal. 1575 from 1965 according to Fratello. Auction catalogues identify date-equipped examples as Cal. 1560 or 1570; those labels do not necessarily match the number engraved on the movement plate. Sotheby’s lists Cal. 1556 in one 1601; Rolex describes 1556 as a day-and-date caliber.
Date setting	Non-quickset. The date changes by advancing the hands through midnight.
Case	Steel, 18K white-gold and yellow-gold examples are catalogued. Measurements range from 34.5 to 36 mm; the catalogues do not explain the difference.
Bezel	Fluted, described in collector and auction records in white or yellow gold.
Dial	Examples include silver, gray, brown, black lacquer, lapis lazuli and tiger's-eye. A blue mosaic example is seller-described on Rolex Forums; Fratello reports a no-lume example.
Bracelets	Oyster, Jubilee and President examples are documented. Sale configurations do not establish original delivery for every watch.

Where it sits in the line

The 1601 is the fluted-bezel member of the four-digit Datejust group. The 1600 has a smooth bezel; the 1603 has an engine-turned bezel. Fratello dates the 1601 to 1959. Monochrome says it was probably introduced in 1959 or 1960 and gives 1981 as its discontinuation date. Monochrome also describes a shift from early pie-pan dials to flatter later dials; the reviewed sources do not date that change precisely.

The five-digit 16014 kept the fluted bezel and brought the quickset date with Cal. 3035 in 1977, according to Fratello. The 1601's date is set by advancing the hands through midnight.

Production outline

Auction catalogues date individual 1601 examples from circa 1960 through circa 1976. Fratello dates the reference to 1959; Monochrome gives 1959 or 1960 as the likely introduction and 1981 as the discontinuation date. These are published estimates, not serial-linked factory records.

Movement notes

Fratello dates the change from Cal. 1565 to Cal. 1575 to 1965. It gives beat rates of 18,000 and 19,800 vibrations per hour, respectively. Auction catalogues identify several examples as Cal. 1560 or Cal. 1570: Phillips uses 1560 for its circa-1963 example, while Christie's and Sotheby’s list 1570 in later watches. Monochrome explains that shared movement plates can carry 1560 or 1570 engravings on date-equipped movements. Sotheby’s lists Cal. 1556 for its circa-1974 Datejust. Rolex’s 1978 service manual describes Cal. 1556 as a day-and-date movement, but the Sotheby’s watch has a date-only dial. Until the movement is inspected, this remains a catalogue conflict, not evidence that Cal. 1556 belongs in a 1601.

The live Movements guide covers the 1565/1575 family and identifies Cal. 1556 as day-and-date. The Sotheby’s listing remains an unresolved exception until its movement can be checked.

Dial map

The dial list below is limited to examples documented by the cited sources.

Dial appearance	Record	What it shows
Silvered or gray	Christie's circa-1968 white-gold watch; Sotheby’s circa-1966 steel watch	Two light-dial catalogued examples. Sotheby’s calls its dial gray; the auction image reads blue-gray under its lighting.
Brown	Christie's circa-1960 steel watch	One brown dial described with applied baton numerals; the catalogue does not identify a special dial treatment.
Black lacquer with brown discoloration	Phillips circa-1963 white-gold watch	Phillips says the lacquer surface is beginning to turn brown. This is a condition note for one dial.
Blue mosaic	Rolex Forums sale post, caseback stamped 1601 III.71	The seller identifies a blue mosaic dial, matching lume on hands and plots, and a Jubilee bracelet. Originality is not independently established.
No-lume dial	Fratello’s photographed example	The author reports a dial and handset without tritium and describes the collector label “Japan dial.” The report does not establish a country-specific production run.
Lapis lazuli	Sotheby’s circa-1974 yellow-gold example	The catalogue and image agree on a blue stone dial. The listing does not establish factory order or originality.
Tiger’s-eye	Sotheby’s circa-1976 yellow-gold example	The catalogue and image agree on a brown banded stone dial. The listing does not establish factory order or originality.

Dial of a Datejust 1601 with a Jubilee bracelet — Dial and bezel on Sotheby's circa-1966 example; the catalogue describes the dial as gray.

Collectors use “pie-pan” for the dial’s sloping outer edge. Fratello shows it on an early 1601; Monochrome says later examples moved to a flatter dial, with early alpha hands giving way to baton hands and stick indexes. The forum mosaic and no-lume watches are seller- or author-described examples. The auction records identify the two stone dials, but none of these sources gives production totals or proves every dial is original to its case.

Case, bezel, crystal, and crown notes

The bezel is fluted and made in precious metal. Auction catalogues document steel watches with white-gold bezels and full yellow-gold or white-gold cases. Measurements vary: Phillips gives 34.5 mm, Christie’s 35 mm and several later listings 36 mm. The catalogues do not explain the spread.

Christie’s describes undrilled lugs on its 1968 white-gold watch. That detail belongs to the lot, not every 1601 case. Monochrome places acrylic crystals on the 160xx generation before the sapphire transition in the 162xx generation. The photographed examples have a Cyclops over the date. The reviewed sources give no reference-wide crown specification.

Case and crown profile from Sotheby's lot 694.

Bracelets, clasps, and packaging notes

Jubilee and Oyster bracelets appear in the catalogues, and Sotheby’s records a President bracelet on its circa-1976 yellow-gold example. Phillips lists a white-gold Jubilee on its circa-1963 watch; Christie’s describes a steel Oyster bracelet on its circa-1960 example; Sotheby’s lists a steel-and-gold Jubilee on its circa-1966 watch. Fratello also notes Jubilee and Oyster examples. The sale descriptions show what each watch carried when catalogued; they do not identify the bracelet originally supplied with each head.

The Rolex Forums seller dates a blue-mosaic 1601 to 1971 and reports a serial beginning 2.847 million; the clasp carries a K code that the seller dates to 1986. Both the serial and watch date come from the seller. The clasp code dates the bracelet clasp, not the watch head. Boxes, papers and accessories are documented only when a source records them; they are not treated as reference-specific equipment.

Special branches

Two Sotheby’s sales document yellow-gold 1601s with stone dials: a lapis lazuli example dated circa 1974 and a tiger’s-eye example dated circa 1976. The photographs match the catalogue descriptions. The records give no production count or evidence of factory order.

Sotheby’s, circa-1974 yellow-gold 1601 with lapis lazuli dial, lot 130
Sotheby’s, circa-1976 yellow-gold 1601 with tiger’s-eye dial, lot 44

Historical market and auction record

Sale record	Catalogue description
Christie's, Fine Jewellery and Watches, lot 206	Circa 1960; stainless steel; brown dial; 26-jewel movement; Oyster bracelet; 35 mm.
Phillips, Hong Kong Watch Auction: FOUR, lot 880	Circa 1963; 18K white gold; Cal. 1560; black lacquer dial described as turning brown; white-gold Jubilee; 34.5 mm. Sold for HK$175,000.
Sotheby’s, Fine Watches 2025, lot 694	Circa 1966; stainless-steel case; Cal. 1570; gray dial; steel-and-gold Jubilee; 36 mm. The public page does not show the result.
Christie's Watches Online, lot 3	Circa 1968; 18K white gold; Cal. 1570; silvered dial; 36 mm.
Sotheby’s, Important Watches 2024, lot 130	Circa 1974; yellow gold; lapis lazuli dial; 36 mm. Sotheby’s lists Cal. 1556, a day-and-date caliber per Rolex’s service manual; the lot shows a date-only dial, so its movement attribution is unresolved.
Sotheby’s, Important Watches 2020, lot 44	Circa 1976; yellow gold; Cal. 1570; tiger’s-eye dial; President bracelet; 36 mm.

Exterior caseback of a Datejust 1601 — Caseback of the same Sotheby's lot; the catalogue lists case number 1,267,924.

Sotheby's lot 694, circa 1966
Dial and fluted bezel, same lot
Case and crown profile, same lot
Caseback, same lot

Sources

--- 12289 chars, 0 images ---