Minute-repeater watches
References in the Grail Atlas catalog carrying the minute-repeater complication.
A minute repeater chimes the time on demand through small hammers striking gongs inside the case. Activated by a slide on the case-band, the watch sounds hours, quarters, and minutes in distinct tones. It is a top-tier complication. Patek Philippe 5178G, A. Lange & Söhne Zeitwerk Minute Repeater, and Vacheron Constantin Patrimony Minute Repeater anchor the modern category. Acoustic quality varies dramatically by case material (platinum mutes the sound more than gold; steel and titanium project better) and few collectors hear enough examples to develop a real ear before buying.
On demand, a minute repeater chimes the current time in a sequence of tones: low strikes for hours, combined strikes for quarter-hours, high strikes for the remaining minutes.
How the minute repeater works: history, mechanism, parts required, and what makes it hard to build →
