Work in progress

pict

Updates, corrections and insights welcomed

The history of the Rolex Day-Date as written down below can be considered my personal notepad. I will update, confirm and disregard whenever new information reaches me.

Update 16/3/13: like stated elsewhere on this page, I started working on this Day-Date project a good two years ago. I am just now getting through all my notes. This first update is based on these notes. While I once knew where all information came from, for most this is no longer the case. Please read with this in mind.

Update 17/3/13: please note that many watches have been altered – either before or after delivery. No heart attacks if yours fails to fit in to any of the categories below please.

6511

To the best of my knowledge, there have been a few distinctive versions of the 6511 since it was first introduced – notwithstanding minor differences. This very first Day-Date model is said to be somewhat flawed movement-wise, notably the day & date change causing lag in the movement making the overall performance less noteworthy.

Rumour has it that the very first Day-Dates made their appearance in 1955, the same year the patent was filed. Supposedly these were delivered only to the Italian market – more or less prototypes, with the ever watch-crazy Italians serving as guinea pigs. To be frank, I wouldn’t be surprised if this story turned out to be completely flawed. However, these should have a few distinctive marks;

Rolex Day-Date 6511 first generation

  • Only white/silver dials
  • Day-Date wording in red
  • Brevet case
  • Inner caseback signed 6510, crossed out, signed 6511
  • Italian Day disc
  • Dial markings include 50m – 165ft
  • Dial markings include Superlative Chronometer by Official Test. Please note that the word Superlative can be considered somewhat of an anomaly considering the what I’m about to write further down the road.
  • Dauphine hands
Rolex Day-Date 6511 gen 1

Rolex Day-Date 6511 gen 1

As far as I know, the next generation 6511 is the one which still has the depth-rating on the dial;

Rolex Day-Date 6511 second generation

  • Dial colours available unknown. Likely only silver/white.
  • Day-Date wording in red
  • Case details unknown
  • Likely inner caseback signed 6511
  • Day disc in various languages – English and Italian confirmed
  • Dial markings include 50m- 165ft
  • Dial markings include Officially Certified Chronometer
  • Dauphine hands
Rolex 6511 gen 2

Rolex 6511 gen 2

So the first two generations.. – well, speaking of ‘generations’ might be too much.. I might change to ‘mark’ in the next update, as this only took place in the span of 1-2 years- are covered. The next one is what I would consider to be the most common, the standard, 6511. Let’s consider this one the 1956 Basel model – the official 6511.

Rolex Day-Date 6511 third generation

  • Dial colours available unknown. Likely only silver/white.
  • Day-Date wording in black
  • Case signed 6511
  • Inner caseback signed 6511
  • Day disc in various languages – English and Italian confirmed
  • Dial markings no longer include depth rating
  • Dial markings include Officially Certified Chronometer
  • Dauphine hands
Rolex Day-Date 6511 gen 3

Rolex Day-Date 6511 gen 3

6611

After only a year -or two, depending on which story you’re going with- the 6511 got replaced with the near identical Rolex Day-Date 6611 in 1957. This model was now fitted with the free sprung balance calibre 1055. Being much more accurate than the previous model, it now earned the designation ‘Superlative Chronometer Officially Certified – the first Rolex to be fitted with this text, designating ‘especially good results’ in the chronometer-tests. Besides the chronometer text, the most distinctive change is that from the Dauphine-hands to Alpha-hands. But then again – no hard and fast rules. Many transitionals exist and many parts have been exchanged in service. This is also the very first Day-Date to be available with the President bracelet and different bezels; either fluted, smooth or diamond-set.

Rolex Day-Date 6611

  • Dial colours available unknown. Silver/white, black and gold confirmed.
  • Day-Date wording in black
  • Case signed 6611, 6612, 6613
  • Inner caseback signing unknown – yet to be confirmed
  • Day disc in various languages
  • Dial markings no longer include depth rating – last mention of this fact
  • Dial markings include Superlative Chronometer Officially Certified
  • Alpha hands – so far Dauphine hands seem acceptable too though.
Rolex Day-Date 6611

Rolex Day-Date 6611

6612

Rolex Day-Date 6612

Rolex Day-Date 6613

Rolex Day-Date 6613

Note the Dauphine hands on the last example. No hard and fast rules.

The one below deserves a special mention, with the chronometer-script being in German. I will work out the story behind these soon.

Rolex Day-Date 6611 Amtlich Geprüft

Rolex Day-Date 6611 Amtlich Geprüft

6611b to be added

1800

1959 marks the release of the 1800-generation, powered by calibre 1555. The official introduction is supposed to have been on September 1st, 1960. This is where the real fun starts; an sturdy and reliable movement and, throughout the years, a crazy number of dials, bezels and bracelets.

Noteworthy updates include the 1963-64 change from radium to tritium and the 1965 switch from calibre 1555 to the higher-beat 1556. Hacking introduced in 1972.

Click the following link for a full list of references: http://rlxdd.wordpress.com/overview/references/1800-2/

Rolex Day-Date 1800

  • Many dial colours available
  • Day-Date wording matching the other text
  • Case signed 1802, 1803, 1804 et cetera, designating the type of bezel fitted
  • Inner caseback signing 1800 (180x)
  • Day disc in many languages
  • Dial markings include Superlative Chronometer Officially Certified
  • Hands in different styles; early transitional ones fitted with Alpha-hands, others include the most common Baton-type, tapering Cigarette, Wide Boy et cetera.
Rolex Day-Date 1803

Rolex Day-Date 1803

1831

A special mention is in order for the elusive reference 1831, said to be made in no more than 8 examples as a custom order in platinum only. It uses an OysterQuartz-type of case, while using a integrated bracelet in King Midas style – strangely neither of these models was made in platinum though. Exceedingly deep pockets needed.

Rolex Day-Date 1831

Rolex Day-Date 1831

Stefano Mazzariol

Yorktime

Antiquorum

Bonhams

John Goldberger

Amsterdam Vintage Watches

Amsterdam Watch Company

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