PatekPhilippe’s first Nautilus series chronograph Ref. 5980 / 1A was launched in 2006. At the time, it was very popular because it had all the conditions of a sports watch. The time function provides greater convenience for contemporary people to travel around and jump around.
Feature one: The first feature combination of Nautilus
The Nautilus series debuted in Ref. 3700 / 1A in 1976. At present, the series has been over 40 years old. The Ref. 5990 / 1A time chronograph is one of the complicated function timepieces and will replace the aforementioned Ref. 5980 / 1A. Although Patek Philippe used the date, chronograph and time display complex functions in other series earlier, this is the first feature combination of the Nautilus series.
In addition to the unique porthole lines and hinged ridges of the Nautilus case, the new watch’s black surface has a gradual tone from the center to the periphery and is decorated with the common lateral pattern of Nautilus.
Feature two: Super convenient time adjustment between the two places
The watch is equipped with two coaxial hour hands. The hollowed-out hour hand on the lower layer indicates the home time. The upper hand design matches the minute hand to display the local time. If the watch’s main body is in the home country, the two hour hands will overlap each other to indicate the same time zone. , But if you need to go to another time zone, you can adjust the local time hour hand by one hour through the increase and decrease buttons attached to the horizontal ridge on the left side of the watch. If the watch owner goes east to another time zone toward the sun, he must correct the hands counterclockwise; if he goes west, he adjusts the hands in the opposite direction, and the hollow hands will not be affected by the above correction process. Home time. The 5990 / 1A watch also has two separate day and night displays, ‘LOCAL’ and ‘HOME’, located below the center axis of the watch, so that the watch owner will not call his loved ones late in the evening.
The time display function of 5990 / 1A can be adjusted by adjusting the left and right ridges. As the watch and the handle line are continuous, the craftsman must open a hole in the case to join each new handle, and at the same time Keep 120 meters waterproof
Feature three: functional design
The watch is equipped with a CH 28-520 C FUS self-winding movement, a traditional column wheel design, and an innovative disc clutch. The two-time device, which was patented in 1959, can be adjusted in one hour in both directions. The local time display shows that when the time zone setting is changed, the device can be completely disengaged from the gear set without affecting the swing of the balance wheel and the speed performance of the watch. The case has also been redesigned. Nautilus’ unique porthole lines and two hinged transverse ridges are exactly matched with this complex function combination. The right transverse ridge protects the crown and the left side is converted into two time zone adjustment buttons. All buttons are set along the original contour of the case. However, the coherence of the watch and the handle is a great challenge for the watchmaker: the craftsman needs to make a hole in the case and join each new handle, but still must ensure that the watch is waterproof to a depth of 120 meters. The difficulty is self-evident. Nautilus’ new chronograph meets all waterproof specifications and uses the latest sealing technology to achieve such waterproof performance.
The date display of 5990 / 1A is moved to the 12 o’clock position and changed to the pointer display; the original single integrated time dial is changed to a scoreboard. The movement needs 47 new parts to match the above changes, but the thickness is only 0.3mm larger than the original model.
Nautilus 5990 / 1A dual time chronograph
Stainless steel material / CH 28-520 C FUS automatic winding movement / hours, minutes, date display / chronograph function / dual time display / individual time zone day and night display / sapphire crystal / waterproof 120 meters / 40.5mm Reference price: 363,000 RMB