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Differently from the Zeitwerk Striking Time introduced in 2014, where the mechanism triggers the striking of one of the two gongs every 15 minutes, the A. Lange & Söhne Zeitwerk Replica presented last January at the Salon International de la Haute Horlogerie de Geneve, makes time audible in a new way. In fact, its striking mechanism sounds every ten minutes.
Produced in a limited edition of 100 pieces, the new model comes in a 44.2 mm x 13.1 mm case crafted from honey gold, a special alloy which is harder than other gold alloys while delivering a beautiful a distinctive warm tone. Introduced in 2009, the A. Lange & Söhne Zeitwerk Replica gave time a new face with a mechanical jumping numerals display. Now, the Zeitwerk Decimal Strike expands the line with the third model featuring an acoustic time indication.
Given its mechanical architecture, the Zeitwerk calibre offers the ideal conditions for the integration of a striking mechanism considering that a large amount of energy needs to be built up for advancing its mechanical, precisely jumping numerals displays.
In the A. Lange & Söhne Men's Replica new model, the Introduced in 2009, the A. Lange & Söhne Zeitwerk Replica gave time a new face with a mechanical jumping numerals display. Now, the Zeitwerk Decimal Strike expands the line with the third model featuring an acoustic time indication. required energy relies on two differently tuned gongs to indicate the full hours as well as the ten-minute intervals between the start of one hour and the next.
The two hammers that are visible on the dial side consist of polished steel and, like the hammer bridge, are decorated with a tremblage engraving. The hammer on the left strikes the low-pitched gong once every full hour while the right-hand hammer sounds a higher-pitched tone every ten minutes.
In one-minute intervals, the units disc instantly advances by exactly one increment. Legibility is excellent thanks to the large display and the precision of the numerals jumps. The patented constant-force escapement between the mainspring barrel and the balance delivers the power, making sure that the balance has a constant amount of energy across the entire power reserve period.
The high-pitched tone sounds every time the tens disc advances; at the start of the hour, when the low-pitched tone is struck, all three numeral discs jump synchronously by one increment.