OYST E R P E R P E T UA L
C O S M O G R A P H D AY T O N A

WEARING THE WATCH
FOR THE FIRST TIME
Before being worn for the first time, or if it has
stopped, a Rolex watch must be wound manuallyin order to function correctly and precisely.
To wind the watch manually, unscrew the winding
crown completely, then turn it several times
clockwise. (Turning in the other direction has
no effect.) A minimum of 25 turns is required foradequate partial winding. The watch will thenbe wound automatically as long as it is worn onthe wrist. Carefully screw the crown back down
against the case to ensure waterproofness.

The green seal accompanying yourRolex watch is a symbol of its status
as a Superlative Chronometer. This
exclusive designation attests that it
has successfully undergone a series ofspecific final controls by Rolex in its ownlaboratories in addition to the official
COSC certification of its movement.
This unique testing of its chronometricprecision, waterproofness, self-winding
and reliability pushes back theboundaries of performance and makes
Rolex a benchmark for excellencein mechanical watches. For furtherinformation, please visit rolex.com.

		

THE HEART OF THE COSMOGRAPH DAYTONA MODELOYSTER PERPETUAL COSMOGRAPH DAYTONA		OVERVIEWSETTING THE WATCH
EASYLINK COMFORT EXTENSION LINKROLEX GLIDELOCK FINE-ADJUSTMENT SYSTEM		CARING FOR YOUR ROLEXAFTER-SALES SERVICEWORLDWIDE SERVICE NETWORK

4-5
USING YOUR WATCH
6-7
8-13
14-15
16-17
ROLEX SERVICE
18-19
20-2122		ROLEX.COM		

23THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICE5OYSTER PERPETUALCOSMOGRAPH DAYTONAThe Oyster Perpetual Cosmograph
Daytona is the benchmark for those witha passion for driving and speed. Of
legendary relia­bility, this model features
a centre chronograph seconds hand,
30-minute and 12-hour counters, anda tachymetric bezel. It is the instrumentof choice for measuring elapsed timeor calculating average speeds.
The dial offers exceptional legibility
thanks to its Chromalight display
elements filled with a high-performanceluminescent material.

The 40 mm Oyster case, guaranteed
waterproof to a depth of 100 metres(330 feet), is a paragon of robustness andreliability. Its Triplock winding crown, witha triple water­proofness system, is protectedby a crown guard crafted as an integral
part of the middle case. Both the winding
crown and the chronograph pushers screw
down against the case. The sapphire crystal
is virtually scratchproof and benefits froman anti-reflective coating.
The Oyster Perpetual Cosmograph Daytona
is equipped with a self-winding mechanicalmovement entirely manufactured by Rolex.

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICEOVERVIEW
Hour hand

Upper pusher (start/stop)

Minute handLower pusher (reset)

Small seconds

Bezel with tachymetric scale

Chronograph seconds hand

Triplock winding crown withtriple waterproofness system30-minute counter
12-hour counter6

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICESETTING THE WATCH
Screwed-down position (crown inposition 0, pushers screwed down)
The crown and pushers are completely
screwed down against the case.
When the crown and pushers are inthis position, the Oyster Perpetual
Cosmograph Daytona is guaranteed
waterproof to a depth of 100 metres(330 feet).
Manual winding (crown in position 1)
The crown is unscrewed. To wind
the watch manually, turn the crownclockwise; turning in the other direction
has no effect. When setting the watch

for the first time or after the watch
has stopped, complete a minimum of
25 turns for partial winding.
Setting the time (crown in position 2)
The crown is unscrewed and pulled out
to the first notch. The small seconds
hand is stopped, allowing you to set
the time to the precise second. To set
the hour and minute, turn the crownin either direction.

8Initial winding and setting
A. Wind the watch manually (position 1).
B. Set the time (position 2).

Unscrew and then pull out

After every use, carefully screw the crownback down against the case to guarantee thewaterproofness. Return the crown to position 1
and apply light pressure on it while screwing
it down clockwise against the case. The crownshould never be unscrewed underwater.

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCH

MEASURING ELAPSED TIME
To measure elapsed time, follow thesteps in the order given:– Completely unscrew the pushers byturning them counterclockwise.
– Ensure that the chronograph seconds
hand is stopped. If necessary, stop itby pressing the upper pusher.
– Press the lower pusher to reset thechronograph seconds hand andcounter hands to zero.
– Press the upper pusher to start timing.

ROLEX
SERVICE– Press the upper pusher again tostop timing.
– Read the elapsed time. The centre
seconds hand displays the elapsed
seconds, the counter at 3 o’clock theminutes, and the counter at 9 o’clock
the hours.
– Screw the pushers back down byturning them clockwise.

10

Starting and stopping the timing

Resetting the chronograph seconds handand counter hands to zero

* Elapsed time in this illustration is 8 h 06 m 04 s

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCH

CALCULATING AVERAGE SPEEDPER HOURThe Oyster Perpetual Cosmograph
Daytona can be used to calculate
average speeds over a given distance(1 km, 1 mile, etc.).
To calculate average speed, follow thesteps in the order given:– Completely unscrew the pushers byturning them counterclockwise.
– Ensure that the chronograph seconds
hand is stopped. If necessary, stop itby pressing the upper pusher.

ROLEX
SERVICE

12– Press the lower pusher to reset thechronograph seconds hand andcounter hands to zero.
– At the starting point of the distanceto be covered, press the upper pusher
to start timing.
– When the distance has been covered,press the upper pusher to stop timing.
– The chronograph seconds handindicates the average speed on
the tachymetric scale (chosen unitof distance/h).
– Screw the pushers back down by
turning them clockwise.

Starting and stopping the timing

Resetting the chronograph seconds handand counter hands to zero

* Over a distance of 1 km, the average speed
in this illustration is 160 km/h

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICE

14

EASYLINK COMFORTEXTENSION LINKTo ensure optimal comfort when wearing
your watch, Rolex created the Easylink
comfort extension link. This exclusive
system, fitted on the Oyster bracelet ofthe Cosmograph Daytona, comprises alink that is pulled out or folded back on
itself to adjust the length of the braceletby approximately 5 mm, without theneed for tools.

Adjusting from the short position
to the long position

Adjusting from the long position
to the short position

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICEROLEX GLIDELOCK
FINE-ADJUSTMENT SYSTEM
On the Oysterflex bracelet, the Rolex
Glidelock fine-adjustment system enables
the bracelet length to be adjusted inapproximately 2.5 mm increments up
to around 15 mm.

Adjustment of the bracelet
Open the clasp
Pull on the bracelet to release it
from the notch in the rack
Adjust the position of the braceletto the desired length
Lock down the bracelet

16

THE HEART OF THECOSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICE

18

CARING FOR
YOUR ROLEX
Thanks to Rolex expertise, your watch
will require very little day-to-day care.

You can help preserve its lustre bycleaning it occasionally with a microfibre
cloth. You can also wash the case andbracelet from time to time using soapy
water and a soft brush. After wearing
your watch in the sea, it is important torinse it with fresh water to remove any
salt and sand deposits.

19

Before cleaning your watch, always
ensure that the crown is screwed down
properly against the case to guarantee
waterproofness.

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICE

20

AFTER-SALESSERVICE
Rolex after-sales servicing ensures thatyour timepiece will continue to perform
optimally in terms of precision, reliability
and waterproofness, and also retain its
particular lustre.
The proper functioning and timekeeping
accuracy of your Rolex watch movement
is dependent on high-performance
lubricants specially developed by thebrand. Over time, the properties of
all lubricants will degrade, which canaffect a movement’s precision.

Additionally, to verify the waterproofnessof your watch, it is important to carry out
stringent technical checks.
Rolex therefore recommends that youperiodically return your watch to one
of its Official Rolex Retailers or Service
Centres for complete servicing, which isalways performed by a Rolex-approved
watchmaker.

21

During a complete service, the watch
is dismantled and all of its components– the case, bracelet and movement –are closely examined.
The movement is entirely disassembled
and all the parts are carefully inspected.
Those that no longer meet Rolex
requirements are systematically replacedby new components. The movement
is lubricated on reassembly. The caseand bracelet are re-polished or satinfinished according to their original finish,
restoring their shine and lustre whileremoving any marks or scratches.

At the end of the process, your Rolex
watch undergoes a series of tests toverify its functions, waterproofness andpower reserve, as well as the precisionof its movement.
After a complete Rolex service, yourwatch is covered by a service guarantee.

THE HEART OF THE
COSMOGRAPH DAYTONA MODELUSINGYOUR WATCHROLEXSERVICEWORLDWIDE SERVICENETWORKThe network of Official Rolex Retailers
and Service Centres covers more than
100 countries around the world anddraws on the expertise of highly skilled
watchmakers, carefully selected andtrained by Rolex.
Official Rolex Retailers can advise you on
all the technical aspects of your watch’sfunctions. Whether your bracelet needs
sizing or it is time for a complete service,highly qualified Rolex watchmakers areon hand worldwide to meet all of yourservice needs.

For a list of Official Rolex Retailers andService Centres, please visit rolex.com.

22

23ROLEX.COM
We invite you to visit rolex.com,
a privileged place to learn more about
the functions of your Rolex watch
and about the quality, know-how andfundamental values of the brand.
Welcome to the world of Rolex.

Rolex reserves the right to modify the models illustrated in this publication at any time.
© Rolex SA, 3-5-7, rue François-Dussaud, 1211 Geneva 26, Switzerland
IMR-DAY-EN-23 - 4.2023 - Printed in Switzerlandrolex.com