Rolex - The Geneva Watch Auction: THREE Lot 227 May 2016 | Phillips
Men's Rolex Oyster Turn O Graph Ref 6309 18k SS Automatic 1950s Vintage RJC171B | eBay
ROLEX REF. 6309 DATEJUST THUNDERBIRD YELLOW GOLD Rolex, "Oyster Perpetual, Datejust, Superlative Chronometer, Officially Certified," case No. XX8455 (partially erased), Ref. 6309. Made in the late 1950's. Fine and rare, center seconds,