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Rolex Oyster Perpetual ref. 6551, 'Midsize' — view 1 of 6
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Wristwatches · Wristwatch

Rolex Oyster Perpetual ref. 6551, 'Midsize'

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Rolex (maker)
Date
c. 1969
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 31 mm
Stock no.
OC2377
Credit line
Dealer listing, Oliver & Clarke (OC2377)
Catalogue title (original)
Rolex Oyster Perpetual Ref. 6551 - 'Midsize' (English)

View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction

Record summary

Catalogued by Oliver & Clarke (dealer), United Kingdom (stock number OC2377), this is a wristwatch by Rolex, made in Switzerland, dated c. 1969. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Recorded dimensions: Case 31 mm. The record is illustrated with 6 photographs.

Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.

Catalogue description

Dealer description — Oliver & Clarke

If you boil Rolex down to its purest form, what do you get? The Rolex Oyster Perpetual. This is truly the genesis for the entire Rolex brand. The very first Rolex models were called ‘Oysters’ which was owed to their innovative three part case that all screwed into each-other. That is where the fluted bezel actually derives from, being screwed down into the top of the case to secure the crystal with a gasket - as well as the grooves on the oyster case back. All makes sense now - right? The piece that we have here is a descendant of those early watches, though probably not what you first think of when you hear Oyster Perpetual... This is a 'midsize' Oyster Perpetual Ref. 6551 dating to circa 1969. It comes in at 31mm in diameter and is constructed out of 18k yellow gold and it remains in fantastic overall condition. The case is unpolished and shows normal signs of wear throughout with a few small impressions on the case profiles. The finely 'fluted' yellow gold bezel is in matching condition and retains crisp factory finishing. Inside, it has a sunburst silver dial with applied indices and Tritium plots on the outside, which remain fully-intact and exhibit an attractive, even patina throughout. On close inspection, there is some edge wear present at the 12 o'clock position and between 6-7 o'clock, and a few of the indices show some surface oxidation. The Tritium within the handset matches perfectly. The highlight of the piece, however, is the rare 'woven' bracelet that this piece comes fitted with. Like the case, it is constructed out of solid yellow gold and also remains in fantastic condition. Many other watches with stylistic woven bracelets like this have been previously shortened to suit one specific wrist with no way of resizing that doesn't require work by an artisan. By some miracle, this piece has seemingly been spared being cut-to-size and remains long enough for virtually any wrist size, and unlike most pieces with an artistic bracelet like this, this one has a traditional Rolex 'blade'-style clasp with micro-adjustment holes for sizing. And don't let the 31mm case size fool you, this piece can suit a larger wrist size than you may think thanks to the visual impact of that stunning bracelet. This then, is a brilliant example of Rolex displaying a more artistic side, all while still very much being a Rolex with that water-resistant Oyster case and a robust automatic-winding movement inside. Hard to beat.

Historical context

Quartz Revolution (1969 – 1990)

Seiko's Astron begins mass quartz timekeeping; traditional industries contract sharply.

Quartz and digital watches transformed the market after 1969. Swiss employment collapsed, Japanese and Hong Kong production soared, and the Swatch (1983) helped the Swiss industry recover; mechanical watches survived as luxury goods.

Read the period in the timelineMore wristwatches from this periodEarlier: Modern Mechanical Horology

Atlas type guide

Dive and water-resistant watches

Keeping water and dust out of a wristwatch was a long-standing challenge. Rolex's screw-down Oyster case (1926) and Omega's Marine (1932) were landmarks; in the early 1950s Blancpain's Fifty Fathoms and Rolex's Submariner defined the professional dive watch with rotating bezels for timing dives, luminous dials and high water resistance. The ISO 6425 standard (1982) later codified what a 'diver's watch' must do.

Dive watches became icons of post-war design and exploration, and their evolution — helium escape valves, ceramic bezels, saturation-diving depth ratings — records the history of underwater work.

What to look for

  • Unidirectional or bidirectional rotating bezel with minute markings.
  • Screw-down crown and case back; depth rating printed on the dial.
  • Luminous hands and markers (radium before c. 1960, tritium c. 1960–1998, then Super-LumiNova).
  • Reference numbers on the case between the lugs or inside the back.

Dating clues

  • Screw-down Oyster cases: from 1926.
  • Professional dive watches: from 1953.
  • Tritium 'T' marks on dials: c. 1960–1998.

General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.

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