Question about Rolex SS/18kt Daytona

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Rolax Daytona Cosmograph

Still looking for actual advice on the workings of Daytona Cosmograph and its functions. Thank you

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Re: Rolax Daytona Cosmograph - Rolex SS/18kt Daytona Watches

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Posted on May 16, 2007

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I have a Rolex cosmograph daytona 116518. I do not have the operations manual and so I do not know what the three smaller dials are for. I got the watch as a gift.

It's fake I've seen that particular replica 20 time at least. Aside from the winner engraving on the back the sub dials are a calandra on the fake and are a cosomograph on the real.

Nov 26, 2012 | Rolex Daytona 116520 Wrist Watch

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Rolex daytona

its not the manual, but this might help:
the three button chronograph would be brought together in the form of the 5034. During the next fifteen years the 5034 changed into the 6034, which then became the 6234. This in turn became the 6238 and then finally evolved into the 6239. These changes although little by little had inspired Rolex to revive the previously shelved name the "Cosmograph". The only difference between the 6239 and the 6238 was that on the 6239 the bezel was engraved with tachymeter graduations rather than having them on the dial. The last major changes to the manual wind chronograph came in the late 1970's when Rolex introduced the 6263 model. This was the first model to have truly waterproof pushers. The earlier Oyster Chronographs had simple round pushers with internal gaskets as the only sealing mechanism. The screw down pushers were added to stop people pressing the buttons, whilst submerged in water. The locking function also prevented the chronograph being activated inadvertently. The new 6263 started life as being waterproof to 165 feet, ten years later it was capable of twice that depth (100 meters) The 6263 is unusual in the fact that the quality of the movement depended on which case you had. The steel chronograph movements were not timed to a chronometer standard. Despite the innovative design it was not until 1986 when the popularity of the Daytona started to increase, reaching its zenith with a particular Daytona model, the "Paul Newman". This model featured square markers on the subsidiary dials, and an outer track the same colour as the subsidiary dials.

Dec 17, 2007 | Rolex Daytona 116520 Wrist Watch



Follow this link and download interactive user guide for ROLEX COSMOGRAPH DAYTONA.

on Feb 03, 2010 | Watches

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Hi, I have a Daytona 24 number stainless steel watch: Back: engraved number 045 on "pin holder;" has WINNER then next line ROLEX, then next to word "ROLEX" the race flag, then under...


Not sure what your question is.. but I assume you wish to know if you have the real thing or not.
The watch you describe is a reproduction and not the genuine article.

I am sure there are other indicators.. however the Daytona and 99.9999% of all Rolex watches do not have engraving on the back cover.
Best of luck

Mar 26, 2011 | Rolex Daytona 116520 Wrist Watch

1 Answer

I have a' rolex oyster perpertau superlativechronometerofically certified cosmograph' watch with an inscription on the back'winner rolex ad daytona 1992 24' is it a genuine rolex and if so what is it...

i have a' rolex oyster perpertau superlativechronometerofically certified cosmograph' watch with an inscription on the back'winner rolex ad daytona 1992 24' is it a genuine rolex and if so what is it worth.thanks curtis and the date pointer came out from it place how to fix back?

Oct 02, 2009 | Rolex Daytona 116520 Wrist Watch

5 Answers

Rolex ad Daytona 1992 replica

The advice given here is accurate to a degree. When wound, a rolex daytona IS running. However, it is the running seconds hand in the small sub-dial that is actually running. In the earlier Daytonas, this sub-dial was at the 9 o'clock position on the dial, (pre-2001 series daytonas). The later daytonas, from 2001 on, use the seconds at 6 position for counting seconds. The main sweeping second hand on the watch dial will NOT start until activated by the pusher at the 2 position. That pusher needs to be unscrewed and then pushed to start the large sweeping second hand. This action, in turn, starts the remaining 2 sub-dials in motion, counting minutes and hours. To stop the chronograph function, you push the pusher @ the 2 position again, to stop the sub-dial hands from counting, and then push the pusher @ the 4 position to re-set the dials to their "straight up position". This stops the chrono's function, until it is needed again, BUT the main running seconds, (at either the 9 or 6 sub-dial position, depending on the year series of the daytona) will continue to run, thus keeping accurate time.  Hope this gives you a better idea of how the timekeeping of the chronograph function on a Daytona works. So, to start your seconds running you need to start the chrono function by pressing the pusher at the 2 position. That will allow you to see the large sweeping second hand I think you're referring to here. Hope this has helped.

Jan 11, 2008 | Rolex Daytona 116520 Wrist Watch

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Rolax Daytona Cosmograph

exactly what do you need to know? I am a Certified watchmaker and repair these all the time. Call me 707-338-3207 Donald McPherson Precision Horological Engineering

May 16, 2007 | Rolex SS/18kt Daytona

1 Answer

Rolex Daytona Wrist Watch

Try these guys for a manual; They have the 2000 daytona manual and several older ones available. Otherwise try your local Rolex dealer; Hope this helps :)

May 16, 2007 | Rolex Daytona 116518 Wrist Watch

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