The Reference 5164 Aquanaut Travel Time by Patek Philippe indicates the time in two different time zones at a single glance. This makes it an ideal companion for people who are often on the move, be it for business or pleasure. The ingenious and exclusive mechanism, based on a Patek Philippe patent granted in 1959, premiered in 1997; its fascination derives from the fact that it is extremely simple to operate and eminently legible. The watch has two differently designed center hour hands: the solid hand shows local time and the skeletonized hand indicates home time at the owner’s principal place of residence or work. En route, all it takes to adjust local time hour by hour clockwise or counterclockwise is gentle pressure on either of the two buttons in the side of the case. When such adjustments are made, the local time hand is disconnected from the movement, so the accuracy of time displayed by the minute and seconds hands is not compromised. The double day/night indicators for home time and local time are very useful in that they prevent unintentional nighttime phone calls that might wake up loved ones or colleagues. If the display of a second time zone is not needed, the two hour hands are superposed and move in unison. Thus, owners of a complicated Patek Philippe watch with the Travel Time function actually possess two timepieces in one.
The Aquanaut Travel Time Reference 5164 combines the very useful display of two time zones with the convenience of a self-winding movement that features a Spiromax®-balance spring in Silinvar® – a trailblazing development that enhances the rate accuracy and reliability of your watch.
winding crown The winding crown is used to wind the watch (position 2) and to set the time (position 3). winding Your watch incorporates a self-winding movement. The movements of your wrist set a centrifugal mass in motion; this tensions the mainspring which stores the energy. When you take off your fully wound watch, it will continue to run for up to 45 hours. When it has stopped after depleting the power reserve, it can be rewound by hand (about 10 clockwise turns of the crown). Please wind the watch before you put it on. This way, you can avoid lateral pressure on the winding stem which in the course of the years could damage the stem tube. setting the time for the home time zone (basic setting) The reference time for your Aquanaut Travel Time is the time at home, where you normally live or work. To set home time, first actuate one of the pushers in the left-hand flank of the case as many times as needed to superpose the skeletonized and solid hour hands and to display the same color in the day/night indicator apertures at 3 o’clock (HOME) and at 9 o’clock (LOCAL). Now, you can unscrew the crown, gently pull it out, and move the hands clockwise or counterclockwise until they indicate the current time. The day/night indicator in the round aperture at 3 o’clock (HOME) lets you check whether you have set the correct time (white stands for the daylight hours from 6 a.m. to 6 p.m., black for the nighttime hours from 6 p.m. to 6 a.m.). Once the watch indicates the correct time, push the crown home and screw it tight again.
Caution: Please set the time before you put the watch on. This prevents lateral pressure on the winding stem. Please use your fingernails to pull the crown out and turn it gently between two fingertips. date correction The date indicated by your Aquanaut Travel Time refers to the local time zone. To correct the date display, actuate the correction push piece at 4 o’clock as many times as needed to indicate the correct date.
Caution: The date correction mechanism is blocked between 10 p.m. and 2 a.m. If you need to change the date, please do so between 2 a.m. and 10 p.m. display of a second time zone Your watch has two center hour hands that move synchronously and can be superposed. When the two hands are not superposed, the solid hand indicates local time (in the time zone in which you are currently located) while the skeletonized hand indicates home time (at your normal place of residence or work). With the pushers in the case flank at 8 and 10 o’clock, you can move the solid local time hand clockwise or counterclockwise in one-hour steps.
Caution: Before you set a second time zone (local time), check the day/night indicator at 3 o’clock (HOME) to make sure that the two superposed hour hands indicate the correct time at home and that the day/night indicator correctly displays daytime or nighttime hours, for instance 6 a.m. or 6 p.m. 14 You can set the local time hour hand to a given time zone as follows: – If you are traveling eastbound, press the pusher at 8 o’clock to move the hand clockwise by as many hours as the two time zones are apart (press once for +1 hour). – If you are westbound, press the pusher at 10 o’clock to move the hand counterclockwise by as many hours as the two time zones are apart (press once for –1 hour) The skeletonized hand continues to indicate home time and the day/night indicator at 3 o’clock referenced to this hand (HOME, shows you whether it is momentarily day or night in your home time zone (normal place of residence or work). If you continue your journey and pass through further time zones, simply repeat the procedure described above with the + or – pushers. As soon as you have returned to your home time zone (normal place of residence or work), simply press the + or – pushers as many times as needed to superpose the two hour hands again. Make sure the two day/night indicators (HOME and LOCAL) indicate the same time of day and have the same color.
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