Reference:6098: Difference between revisions

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The 6098 appeared on the 36 mm Oyster platform shared with the early 6150, 6298, and 6350 references. Early examples are recorded with Cal. A.296; later examples use Cal. 1030. The 6098 remained an Oyster Perpetual reference, so its dials do not consistently carry the Explorer or Submariner name.

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The 6098 is associated with a 60 m / 200 ft water-resistance claim. Perezcope reproduces a 1939 Italian Rolex advertisement that gives the automatic Oyster Perpetual the same 200 ft figure. That advertisement covers the wider Oyster Perpetual line, so it should not be read as a production total or a guarantee for every surviving 6098.

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Cal. 1030 is the movement most often documented in surviving 6098s. Rolex introduced it around 1950 as a new automatic architecture with a bidirectional rotor; published technical descriptions also record a 25-jewel count and chronometer adjustment on some versions. Those details vary by movement and should be checked against the watch in hand.

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Surviving 6098s show several dial layouts. Honeycomb dials with applied batons are documented in silvered and black finishes, with the coronet at 12 and either “Precision” or chronometer wording above 6. The Chevalley and Vailati examples are useful reference points, but neither establishes the complete production range.

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Hand sets vary between documented examples. Alpha, pencil, and dauphine hands are reported, while the surviving evidence does not support a single factory hand rule for every dial. A hand set must be assessed with the dial, movement, and case history.

The caseback is flat or nearly flat. Some expedition watches received post-delivery engravings. Perezcope documents the engraving on Vailati's watch, and auction material records an engraved caseback on Alfred Gregory's example. Those engravings support provenance only when the watch's other evidence agrees.

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The 6098 appears in several expedition records, but each watch has to be treated separately.

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The Super Oyster crown is a period-correct question more than an original-versus-service one. Service crowns from the late 1950s onward fit the 6098 tube but read differently. Period-correct Super Oyster crowns carry specific signing and proportions that match 1952–53 delivery. Catalog photography on the Antiquorum 2018 Hong Kong example is a useful reference.

Caliber match: Cal. 1030 on a 6098 is the norm, and Cal. A.296 on a 6098 is also correct, particularly for earlier examples. A Cal. A.296 6098 should not be treated as incorrect. It should be verified against the case number and production quarter.

Case numbers in the published examples include Vailati 912378 with an IV.52 caseback stamp, Alfred Gregory 726182, the Antiquorum 2012 gold example 947778, and Baschieri Salvadori 926504. These examples do not define a complete 6098 serial range; use the serial-number guide and the caseback evidence together.

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The Super Oyster crown system: a reinforced screw-down arrangement documented on early 6098 expedition watches. Later Submariner references developed their own crown and sealing details.

* [[Reference:6350|Explorer 6350]]: First 'Explorer' Dial (1953–1955)

* [[Reference:1016|Explorer 1016]]: Gilt to Matte (1963–1989)

== Sources ==

* [https://www.phillips.com/auctions/watches Phillips — galaxy star dials article]

* [https://le-monde-edmond.com/ Le Monde Edmond — star dials]