Stainless steel 6062 cases were produced by Spillman, Rolex's longtime supplier for steel Oyster cases. Gold cases were produced by Genex, the case-making https://zzb.bz/kNbuRT link arm of famed bracelet maker Gay Frères (which Rolex acquired in 1998), identifiable by the https://v.gd/2STx9w link maker's mark 12 on the inside https://tinyurl.com/363extac link caseback. I've read one auction catalog that hinted at possible two-tone 6062s cases being produced, but this remains a rumor.

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