A new sound of time – the first Lange watch with a decimal minute repeater
In the exalted category of chiming wristwatches, the Zeitwerk Minute Repeater is a technical sensation: articulately designed, it combines a mechanical jumping numerals display with a decimal minute repeater for the first time.
The Zeitwerk Minute Repeater is the first A. Lange & Söhne model with a striking mechanism that sounds the hours, ten-minute intervals, and minutes. The acoustic sequence precisely reproduces the digitally displayed time whenever the striking mechanism is triggered with a pusher. The dial time is sounded with a low-pitched tone for each elapsed hour, a double tone for each elapsed ten-minute period, and a high-pitched tone for each elapsed minute.
When they developed the strikework for the Zeitwerk Minute Repeater, the engineers were able to harness the basic principle of the jumping numerals mechanism. The time is displayed with an hour ring and two minute discs instead of with hands. Three snails connected with these mechanical display elements separately sample the number of hours, ten-minute intervals, and minutes to be acoustically indicated.
In place of the conventional slide, the Zeitwerk Minute Repeater features an elaborate pusher system for activating the striking mechanism. To maximise the quality of the sound, the engineers calibrated the movement with the case down to the smallest detail. The tuning process requires acute hearing and is performed manually to achieve harmony and reverberation of each gong separately and to assure perfect sonority in unison.
Lange manufacture calibre L043.5 |
Manually wound, crafted to the most exacting Lange quality standards
Decorated and assembled by hand
Precision-adjusted in five positions
Three-quarter plate made of untreated German silver
Balance cock engraved by hand
|Screwed gold chatons||:||3|
Shock-resistant balance wheel with eccentric poising weights |
Balance spring manufactured in-house
Frequency of 18,000 semi-oscillations per hour
Precision beat adjustment system with lateral setscrew and whiplash spring
|Power reserve||:||36 hours when fully wound if the striking mechanism is not activated|
Time display in hours and minutes with precisely jumping numeral discs |
Subsidiary seconds with stop seconds
Striking mechanism with decimal minute repeater
Crown for winding the watch and setting the time |
Pusher for activating the striking mechanism
|Crystal and back||:||Sapphire crystal (Mohs hardness 9)|
|Dial||:||Solid silver, rhodié|
|Time bridge||:||Black rhodiumed German silver|
|Strap||:||Hand-stitched alligator leather strap, black|
|Buckle||:||Lange deployant buckle in platinum|