What DAYTONA are you wearing today?

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MrE

Well-known member
Feb 27, 2018
279
557
93
#1


A brief history ...

The Rolex Cosmograph Daytona is one of Rolex’s most iconic watches.
("Cosmograph" is the term given by Rolex when the the tachymeter scale (used for measuring distance over time) was moved to the bezel.
"Daytona" signifies Rolex's association with the Daytona International Speedway.)


Early renditions (often referred to as "Pre-Daytona") were simply chronographs.

(Ref. 3525, circa 1941)
Rolex-Ref-3525-Medical-Chronograph-Stainless-Steel-Monoblocco-Oyster-Chronograph-Antimagnetic-...jpg

(Ref. 4113, circa 1942)
Rolex-Chronograph-Ref-4113-Phillips-Auction-May-2016-aBlogtoWatch.jpg

(Ref. 2508, circa 1945)
Rolex Cronografo anno 1945 - Catawiki aste.catawiki.it Raro Cronografo Rolex, referenza 2508, .jpg

(Ref. 6234, circa 1955)
ROLEX-6234-PRE-DAYTONA-STEEL-1024x1024.jpg

(Ref. 6234, circa 1959)
ref 6238.jpg

(Ref. 6234, circa 1962)
ROLEX-6234-1962.jpg

(Ref. 6238, circa 1963)
6238, 1963, 2.jpg





Ref. 6239
was introduced in 1963, the first Cosmograph.

The word "Cosmograph" was added on the dial and contrasting sub-dials where introduced.

(Ref. 6239, 1963-69, Hand-wind Valjoux 72 B then 722 then 722/1)
036.jpg
Notice the bezel featuring 300 units per hour and a cream colored dial - both traits of the very early Daytonas.



In 1962, Rolex partnered with Daytona International Speedway.
Daytona_Beach_1955, The old Daytona racecourse ran partly along the sandy beach and partly alo...jpg Daytona_International_Speedway, The Daytona International Speedway has been in operation since...jpg

The word "Daytona" appeared first in 1964 at the 12 o'clock position and then later was moved to its iconic 6 o'clock position in 1967.
Rolex-First-Cosmograph-Daytona-1963-vintage-chronograph-panda-dial-aBlogtoWatch.jpg
Rolex Cosmograph 'Blue' Daytona 6239, with Daytona at 6, last batch of production.jpg
Notice that the engraved bezel had now been reduced from 300 units/h to 200 units/h.



Another variant of the ref. 6239 features a Paul Newman/Exotic dial
paul-newmen-rolex.png




Ref. 6241
is the same as ref. 6239, only the bezel has changed from steel to “bakelite”/black Plastic, with the tachymeter scale printed in white.
6241-acier-silver.jpg
6241-newman-acier-blanc-3-colors.jpg




Ref. 6241
Initially a prototype in 1965, it features screw-down pushers for the first time.

This is the first really waterproof Daytona, therefore bearing the inscription “Oyster”.
6240-silver.jpg
6240-newman-cadran-white-2-colors.jpg
Notice the absence of the word "Daytona"






Ref. 6263/6265
is probably the most famous.
6263-acier-silver.jpg
6263-newman-noire-rco-record-du-monde.jpg


6265-acier-cadran-silver-first-generation.jpg
6265-acier-tropical.jpg
6265-newman-cadran-blanc-3-colors.jpg


Up until 1987, Rolex had been using a hand-wind Valjoux 72 chronograph movement.
Rolex6262Val72.jpg



In 1988, Rolex introduced a self-winding Daytona, ref. 16520, using a movement based on the
Zenith Caliber 4030.
042.jpg




Ref. 16520
- Bigger size (37mm changed to 40mm)
- Crown guards
- bezel has been changed from 200 units/h to 400 units/h
- Sapphire crystal
- "OYSTER PERPETUAL
SUPERLATIVE CHRONOMETER
OFFICIALLY CERTIFIED"
was added on dial
- The surfaces of the dials were now lacquered and glossy with applied metal hour markers inlaid with luminous material.
- The sub-dials featured now a thin outer track of an opposing color, each ringed with a metallic edge.
ECO_14464_0004.jpg



At the BaselWorld fair of 2000, Rolex introduced a new Daytona, ref. 116520, with a new 100% in-house design,
the caliber 4130.


In 2013, the Cosmograph Daytona was the first Oyster model in the Professional range to be offered in platinum. It is fitted with an ice blue dial, exclusive to Rolex platinum models. It is also equipped with a spectacular "Monobloc Cerachrom bezel," which offers exceptional resistance to scratching, as well as offers a brilliant and aesthetic look.



 
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MrE

MrE

Well-known member
Feb 27, 2018
279
557
93
#16
Great pictures! The case looks like it's glowing
Thank you very much! :) Very nice watch.
904 is really bling. Much more shiny and "white".
Only the case back, I feel, is a little thick. Needs to go on a diet :)
 
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MrE

MrE

Well-known member
Feb 27, 2018
279
557
93
#20
7753 movement?
Is that why it's a little thicker?
Being an ARF, I believe it runs a Valjoux 7750 clone movement, with frozen 3 & 9, modified to run the seconds @6 and decorated to look like a 4130.

The rotor is indeed very light and insufficient.

I'm planing to remove the rotor and deco plates and add a thinner lower case back.