A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar

 

Just glancing at the new Lange 1 statement piece from A. Lange & Söhne and you might wonder what the big deal is. Well, the word “tourbillon” on the main time display subdial will give you a clue but you still may not understand. In fact, it is the pure legibility of the perpetual calendar mechanism that brings this watch to life, especially since it is an instantaneous mechanism, where all indicators (including the moon phase) change at the stroke of midnight. Also, that month ring is very special, as you'll see below.

This is A. Lange & Söhne so when the information says instantaneous, it really should be. Before we get to the complicated bit, it is worth remembering that perpetual calendars are at least as complicated to get right as tourbillons. In fact, when looking at this watch, it was clear that A. Lange & Söhne really never had a choice about putting the tourbillon dial side. The display of information is just so crisp and simple, with all the complicated stuff under the solid silver dial.

A Lange Sohne Lange 1 Tourbillon Perpetual Calendar 2

As always with the Lange 1 collection, the off-centered indications take pride of place. This left the watchmakers thinking out of the main display area for the month information. In fact, the month ring encircles the main dial area, rotating around all the other indicators. This rotating ring, as simple as it appears, is actually the first of its kind in a wristwatch.

An arrow at 6 o’clock shows what month it is currently, above which is the leap year indicator. The day of the week is a retrograde hand at 9 o’clock while the oversized date is obvious. The arrangement of all the information keeps everything clear at all times, meaning the hands, windows and rings do not get in each other’s way at all.

For a different perspective - and exclusive photography - check out this story on the A. Lange & Söhne novelties of 2012 by Peter Chong. Peter is an acknowledged horology and sartorial elegance expert. You may recall that he published a book on A. Lange & Söhne recently and that he is the founding moderator of the A. Lange & Söhne forum at TimeZone. He is also quite the gourmet but that's another story...

A Lange Sohne Lange 1 Tourbillon Perpetual Calendar 4  A Lange Sohne Lange 1 Tourbillon Perpetual Calendar 6

A. Lange & Söhne

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