IWC Pilot’s Watches

Pilot's Watch Timezoner Chronograph

Share:
  • Price
  • Reference IW395001
  • Case Material stainless steel
  • Bracelet/Strap black calfskin strap
  • Dial Colour black
  • Jewels 39
  • Calibre 89760
  • Mechanical chronograph movement
  • Self-winding
  • IWC-manufactured 89760 calibre (89000-calibre family)
  • 68-hour power reserve when fully wound
  • Date display
  • 24-hour display for Worldtimer function
  • Hour and minute counters combined in a totalizer at “12 o’clock”
  • Small hacking seconds
  • Screw-in crown
  • Sapphire glass, convex, antireflective coating on both sides
  • Glass secured against displacement by drop in air pressure
  • Water-resistant 6 bar
  • Case height 16.5 mm
  • Diameter 45 mm

Timezoner

The names of 24 cities are shown on the rotating ring, with each name standing for one of the international time zones. The countries with daylight saving time are identified on the rotating bezel by a small “s”. The “UTC” inscription below “London” represents the current coordinated world time. The rotating bezel (city ring) currently shows London standard time, 5 a.m. (24-hour display); it is the 25th of the month (date display). To set the watch to a new time zone, press the rotating bezel with your thumb and index finger, turn the desired time zone to “12 o’clock” (during summertime to the small “s” before the name of the city) and release. It is important to exert pressure on the bezel on two opposite sides to release the locking mechanism cleanly and move the bezel in both directions. The movement of the rotating bezel is transmitted to the hour wheel, the 24-hour hand and the date advance wheel, with the result that all three displays are advanced or turned back an hour at a time. The differential gearing (in the wheel train between the rotating bezel and hour wheel) is the heart piece of the mechanism. It ensures that the hour hand continues to move forwards and enables the one-hourly jumps when the time zone is changed.

THE THING WITH THE CITY RING

The Pilot’s Watch Timezoner Chronograph is the first mechanical watch that permits a new time zone to be set with a single rotation. Simply press the bezel down, turn to the desired time zone and release: the hour hand, 24-hour day/night display and date move automatically in sync. The countries with daylight saving time are identified on the rotating bezel by a small “s”. To create the mechanism IWC’s engineers brought together three technologies: firstly, the city ring found on the Pilot’s Watch Worldtimer, on which the name of each city stands for one of the international time zones. Next up is the spring-mounted rotating ring, first used in the Porsche Design Ocean 2000 from the 1980s. It can be moved only if pressure is applied simultaneously on two diametrically opposite sides, thus preventing accidental resetting of the time zone. And thirdly, we have the external/internal rotating bezel taken from the new Aquatimer generation. This transmits the movement via a differential gear to the hour wheel, 24-hour hand and date advance wheel. If, for example, you wish to know whether you are calling your business partner during office hours or at night, quickly turn the relevant city (i.e. time zone) to the top of the dial. The same principle applies to air travellers or pilots. Every time they change time zones, they can have the watch show them the local time and then revert to the time back home.

reference 3950

IWC Schaffhausen is the only watch manufacturer to offer a world time model that shows a new time zone, including the new time and date, as the result of a simple twisting action. At the same time, the black-and-red 24-hour hand on the inner 24-hour ring shows whether it is night or day.

Highlights

  • Mechanical chronograph movement
  • 24-hour display
  • 68-hour power reserve
  • Flyback function
  • Diameter 45 mm

Price

Further Exploration

From the collection

Aquatimer Chronograph Go
Aquatimer Chronograph

Ticking away inside the 44-millimetre stainless-steel case is the robust 79320-calibre chronograph movement with a 44-hour power reserve. It facilitates stop times ...

News

SGIFF-2016-Promo-Final Go
JAMES MARSDEN PRESENTS
FIRST IWC FILMMAKER AWARD
TO TRAN ANH HUNG AT
SINGAPORE INTERNATIONAL FILM FESTIVAL

The IWC Filmmaker Award was presented at the inaugural “For the Love of Cinema” gala dinner event held at Marina Bay Sands ...

Experiences

IWC Portofino Automatic Moon Phase 37 Go
An Insight Into the Brand History of Midsize Watches

IWC produced not only masculine watches such as the Big Pilot’s Watch and the Portugieser, but also smaller watches with the ...