![Rolex introduced the reference 6511 Day Date in 1956, which was replaced within one year by this reference 6611. The 6611 has sev… | Rolex, Rolex date, Rolex oyster Rolex introduced the reference 6511 Day Date in 1956, which was replaced within one year by this reference 6611. The 6611 has sev… | Rolex, Rolex date, Rolex oyster](https://i.pinimg.com/736x/68/68/bf/6868bfb2a234a9b5efb74d63a5b6fa1b.jpg)
Rolex introduced the reference 6511 Day Date in 1956, which was replaced within one year by this reference 6611. The 6611 has sev… | Rolex, Rolex date, Rolex oyster
![Sold Price: Rolex "Oyster Perpetual 50m=165ft" DAY-DATE Superlative Chronometer BY OFFICIAL TEST", Movement No. DD607800, Case No. 134635, Ref. 6511 with "Brevet Plus" - label, Cal. 1055, 36 mm, circa 1955 - November 6, 0115 12:00 PM CET Sold Price: Rolex "Oyster Perpetual 50m=165ft" DAY-DATE Superlative Chronometer BY OFFICIAL TEST", Movement No. DD607800, Case No. 134635, Ref. 6511 with "Brevet Plus" - label, Cal. 1055, 36 mm, circa 1955 - November 6, 0115 12:00 PM CET](https://image.invaluable.com/housePhotos/crott/26/575326/H3116-L81917381.jpg)
Sold Price: Rolex "Oyster Perpetual 50m=165ft" DAY-DATE Superlative Chronometer BY OFFICIAL TEST", Movement No. DD607800, Case No. 134635, Ref. 6511 with "Brevet Plus" - label, Cal. 1055, 36 mm, circa 1955 - November 6, 0115 12:00 PM CET
![Rolex Yellow Gold President Oyster Perpetual Wristwatch Ref 6511 | 1stdibs.com | Wrist watch, Vintage watches, Estate jewelry Rolex Yellow Gold President Oyster Perpetual Wristwatch Ref 6511 | 1stdibs.com | Wrist watch, Vintage watches, Estate jewelry](https://i.pinimg.com/originals/e9/6b/25/e96b25527f4a72ad2c31ebd583b05426.jpg)