File:Ref 6510 ecole horlogerie 6611 steel.webp: Revision history

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25 May 2026

  • curprev 03:0303:03, 25 May 2026‎ Admin talk contribs‎ 471 bytes +471‎ Rolex Day-Date 6611 in stainless steel — one of six École d'Horlogerie de Genève prize watches produced by Rolex c.1959 as a marketing test run. Caseback engraved "Ecole d'Horlogerie de Genève – 1963" with Rolex crown logo. Antiquorum Geneva, Important Modern & Vintage Timepieces, 19 October 2002, Lot 37 — CHF 50,600 hammer against estimate CHF 25,000-30,000. Only one of six École d'Horlogerie steel 6611s has surfaced publicly. Image via Monochrome Watches. [automatically checked]
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