Launched in 2005, the A. Lange & Söhne LANGE 1 TIME ZONE watch gives users unlimited display options to infallibly deal with all of the world’s time zones.
It is ideal for everyone who travels frequently or often communicates with people in other parts of the world. The LANGE 1 TIME ZONE is based on a principle that is at once unpretentious and practical: If home time has priority and is displayed on the larger of the two off-centre dials, a second pair of hands shows the time in another zone on a small dial – the former subsidiary seconds dial of the original LANGE 1.
The zone time is easy to set, thanks to a push piece and a rotating city ring. But if the user is abroad and wants the local time to become “home time” for the duration of the stay, an ingenious adjustment mechanism makes it possible to reverse the priority of the two times.
In this case, the main dial and the date display are synchronised to the time at the user’s foreign domicile while the subsidiary dial can be set to indicate either the time at home or the time in any other part of the world – depending on the user’s preference.
The Earth rotates about its axis once every 24 hours, basking for a while in the life-giving light of the sun and then progressing into darkness again. Indeed, the days and nights begin and end at different times in the 24 different time zones. For this reason, separate and synchronised day/night indications for the home and zone times are a truly welcome convenience.
The LANGE 1 TIME ZONE shows the day and night phases with small arrows that sweep along bright/dark segments both for home time and for the time in the zone selected with the city ring. This seemly modest item of information about the time elsewhere can save embarrassment: For everyone who makes overseas calls, it is not immaterial whether it is night or day for the person at the other end of the line.
The following description of the normal case for which the user-friendly construction of the LANGE 1 TIME ZONE was designed takes one step at a time. A trip around the world, begins by pressing the button at 8 o’clock. In one-hour increments, this button advances not only the rotating city ring by one time zone – geographically speaking towards the East – but also the hour hand of the zonetime dial which thus automatically remains synchronised with the selected city.
A small applied arrow on the zone-time dial at 5 o’clock, the one closest to the city ring, is the point of reference for setting a second time. The world is circumnavigated after the button has been pressed 24 times. Forming a contrast with the golden Roman numerals applied on the home-time dial, those on the zone-time dial are imprinted Arabic numerals.
Then, there is the other situation for which the master watchmakers at Lange have devised a technically refined solution. The traveller called upon to spend a longer period of time abroad may want to swap the displays of home time and zone time, in other words to have the local time at the foreign destination displayed on the main dial and to synchronise the patented outsize date as well.
This time swap is made possible by the city ring as a reference and a setting mechanism that, while the time zone button is pressed to freeze the hour hand on the subsidiary dial, allows the former home time on the larger dial to be changed to the new local time simply by turning the crown.
Apart from the fact that it may be necessary to correct the date by one day – a convenient rapid date corrector is provided for this purpose – this is all it takes to set the hands of the main dial to the redefined home time. All the while, both dials still inform the user whether it is night or day at the current location and at home.
Experience confirms that in cases of doubt, watches that tell two times are only truly useful if they offer a day/night distinction. With its dual displays and two setting modes, the LANGE 1 TIME ZONE leaves nothing to be desired in this respect.
Beating inside, the manually wound Lange L031.1 calibre movement possesses all of the coveted features of the LANGE 1 – including more than three days’ power reserve thanks to the twin mainspring barrels, the patented outsize date, four screwed gold chatons, the screw balance with the whiplash precision index adjuster, and a hand-engraved balance cock.
The train that drives the zone-time display is configured above the three-quarter plate and can be admired through the sapphire-crystal caseback. The intermediate-wheel cock integrated in the train also bears the inimitable personal signature of a Lange master engraver.
The A. Lange & Söhne Lange 1 Time Zone watch is available in pink gold, yellow gold and platinum versions.
Model: A. Lange & Söhne Lange 1 Time Zone
Reference 116.021: Yellow gold case with solid silver champagne-color dial and crocodile leather strap
Reference 116.025: Platinum case with solid silver rhodié dial and crocodile leather strap
Reference 116.032: Pink gold case with solid silver argenté dial and crocodile leather strap
Lange manufacture calibre L031.1, manually wound, manufactured to the most exacting Lange quality standards; assembled and decorated largely by hand
Precision adjusted in five positions; twin mainspring barrels; plates and bridges made of untreated German silver; hand-engraved balance cock and intermediate-wheel cock
Number of parts: 417
Screwed gold chatons: 4
Escapement: Lever escapement
Balance: Shock-proofed glucydur screw balance, Nivarox balance spring with a frequency of 21,600 semioscillations per hour, whiplash precision index adjuster with patented beat adjustment mechanism
Power reserve: More than 72 hours when fully wound.
Home time with day/night indicator (hours, minutes, small seconds with stop seconds), zone time with day/night indicator and city ring, outsize date for home time, power-reserve indicator
Crown for winding the watch and setting the time; push piece for switching the outsize date; push piece for advancing the city ring, synchronised with the hour hand of the zone-time display and the day/night indicator for the zone time
Case, Dial & Strap
18-carat yellow or pink gold or platinum
41.9 millimetres in diameter
Glass and case back: Antireflection-coated sapphire-crystal glass(hardness 9)
Solid silver in champagne, argenté or rhodié; gold appliques
Hands: Yellow, pink gold, rhodiumed gold, blued steel
Hand-stitched crocodile straps and Lange prong buckle in solid gold or platinum.