IN CON­TROL OF A WHIRL­WIND

The Peak Selections: Timepieces - - The Power of 3 -

Con­nois­seurs of Lange timepieces will be aware that it’s not just its di­als that are worth ad­mir­ing – its move­ments are pure works of art. As Sch­mid shares: “Some­times, peo­ple ask me how to spot a coun­ter­feit Lange. Turn the watch over. If you’re not amazed by what you see, it’s a fake.” The move­ment of the Dato­graph Per­pet­ual Tour­bil­lon has the strik­ing depth dis­tinc­tive of the Dato­graph and – as men­tioned at the start of this story – in­cludes a tour­bil­lon vis­i­ble only through the sap­phire case­back.

View­ing this regulating mech­a­nism, which gets its name from the French term for whirl­wind, will cer­tainly be a treat for own­ers of this watch (only 100 pieces will be made in plat­inum). The tour­bil­lon cage is open­work to al­low a good look at the es­cape­ment as it com­pletes a full ro­ta­tion ev­ery minute. To­gether with the in-house free-sprung bal­ance spring, the mech­a­nism of­fers con­sis­tent rate ac­cu­racy across the watch’s 50-hour power re­serve pe­riod.

For greater ac­cu­racy not just when the watch is run­ning but also when it is be­ing set, the mo­tion of the tour­bil­lon is stopped when the crown is pulled, courtesy of A. Lange & Sohne’s stop-sec­onds func­tion (see side­bar, Pull Out The Stops).

This, of course, is an­other of the watch’s many tech­ni­cal fea­tures, which are de­signed for op­ti­mal ac­cu­racy and ease of use. This phi­los­o­phy is also re­flected in its face: Aside from the neat or­gan­i­sa­tion of its wealth of in­for­ma­tion, the dial’s aes­thet­ics also up its leg­i­bil­ity. A black dial, crafted from solid sil­ver, forms a strik­ing con­trast with hands and hour mark­ers in rhodi­umed gold. Some ex­cep­tional timepieces seem de­signed to be locked away and ad­mired ever so of­ten – the Dato­graph Per­pet­ual Tour­bil­lon is clearly, and hap­pily, de­signed to be used to the full ex­tent of its ca­pa­bil­i­ties.

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