minute repeater

May 21, 2023by Alessandro Rossi
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The minute repeater is a prime example of sophisticated complications that can be achieved through the highest levels of watchmaking craftsmanship. It's no wonder, then, that it's a complication that fascinates many watch enthusiasts. This article is all about the minute repeater, its functionality and history, as well as the best repeater watches on the market.

The Art of Watchmaking: How the Minute Repeater Works

If you want to understand how the minute repeater works, you have to take the time to familiarize yourself with the mechanics behind this challenging complication. The term essentially describes the function of a watch to acoustically represent the time. The acoustic reproduction of the time using tones of varying pitches is ideally performed with the utmost precision and can sometimes be individually adjusted. For example, some models allow the acoustic signals to be limited to the hour, half hour, or quarter hour, to sound every five minutes, or to be heard every minute in the classic minute repeater.

The minute repeater explained in detail

Minute repeater watches date back to the 18th century, the inventor of the tourbillon, Abraham Louis Breguet. The mechanism behind them has been virtually perfected since the end of the 19th century and has undergone only minor development since then. We'll now delve deeper into the subject and examine how watchmakers manage to equip timepieces with this complicated repeater mechanism.

Hourly scale and hourly calculation

The functionality of repeater watches relies on the precise synchronization of hand position and cadre. The hands are therefore usually integrated by the watchmaker at the very last stage of the process and adjusted to the striking mechanism. For repeater watches, the movement and striking mechanism work hand in hand. Cam wheels transmit the time from the movement to the repeater mechanism—a mechanism whose installation requires precise handwork.

The striking of the full hours is carried out in the repeater mechanism by the hourly step and hour rack. The hourly step is a helical part with twelve steps – one for each hour – while the hour rack is a complex rack with twelve spaces between them. If the repeater clock is supposed to strike seven o'clock, for example, we are on the seventh step. A so-called drop lever enters the seventh space of the rack, which moves and raises the hammer lifting shaft. As a result, a hammer strikes the gong spring and the desired note sounds. Triggered by the fall of the hammer, an additional spring mechanism is simultaneously wound, which raises the hammer again before it falls to the next note.

Typically, the models work with tones at different pitches, with the full hour usually being indicated by a low tone.

Quarter-hour relay and incident

A modern wristwatch with a minute repeater indicates the hours, quarter hours, and minutes acoustically, which is why the hour marker and the hour marker are only part of the whole. The quarter hour is usually sounded with a double strike, for which the hammer approaches the gongs twice in rapid succession. This is initiated by the quarter hour marker. This has three double cams: one for each of the first, second, and third quarter hours of a full hour. The fourth quarter falls on the perfect hour and is thus indicated by the low hour tone, not the quarter hour double tone.

For maximum reliability, repeater watches feature a so-called "pre-delay" mechanism. This refers to a delicate slide plate located beneath the minute marker—which we'll discuss shortly. Its job is to jump forward following the first minute tone, thereby enlarging the corresponding scanning area. The result is a chime with greater precision.

Quarter-hour repeater and five-minute repeater

Which brings us to the minute dial. As the name suggests, this element in the striking mechanism is responsible for the individual minutes. The minute dial is star-shaped and consists of four arms, each with 14 teeth. Each tooth symbolizes one minute between the quarter hours. The minute dial follows the rotation of the integrated minute tube and is the last of the components to emit its sound.

Some quarter-repeat watches are available without a minute scale, specifically when the repeater complication is limited to the quarter-hour. Another version of the repeater watch is the 5-minute repeater. This produces a chime either for the full hour, quarter-hour, and every fifth minute, or only for the full hour and every fifth minute. Less commonly, the pitches also differ at ten-minute intervals, for example, at the tenth, twenty, and forty-minute intervals.

Minute repeater

In its perfected form, the repeater strike mechanism, as mentioned above, sets the hours, quarter hours, and minutes to music. The latter are then not "just" announced as an acoustic time signal every five minutes, but every minute. If this option is available for watches with repeaters, they are equipped with the coveted complication of the minute repeater.

The History of the Minute Repeater: A Journey Through Time in Watchmaking

The production of repeating watches is, in a sense, the pinnacle of watchmaking. After all, the mechanism behind minute repeaters typically consists of well over a hundred individual parts that require painstaking assembly. As described at the beginning, we now assume that we owe the basic principle of minute repeater watches as we know them to a certain Abraham Louis Breguet. The French watchmaker undoubtedly possessed considerable inventive talent, as he created not only the tourbillon and minute repeater, but also the first dials with an off-center hour ring. His influence on the further development of watches could hardly have been greater.

In the past, striking clocks were built with bells for a very simple purpose: to reliably inform their wearers of the time, even in the dark. Independently of each other, Edward Barlow and Daniel Quare – watchmakers from London – developed the first clock models with repeating striking mechanisms at the end of the 17th century. Finally, in the mid-18th century, Breguet was the first to come up with the idea of ​​using hammers and gongs instead of bells, which – as we now know – proved to be a long-standing practice.

A few decades later, the first wristwatch with a gong repeater came onto the market. This was developed by Audemars Piguet in 1892 – a milestone in the history of watches of this type. Wristwatches and pocket watches with the complicated minute repeater became available around 1910. Their striking mechanisms already functioned essentially exactly as is typical of today's minute repeaters.

The best minute repeater watches on the market

Due to the challenges of production and the associated enormous amount of time and effort, as well as the high demands on the watchmakers' skills, watches with minute repeaters are not available in the product range of every watch brand. Nevertheless, if you specifically look for models with this type of chiming mechanism, you will find them primarily at renowned brands such as Patek Philippe , Lange & Söhne , Audemars Piguet , or IWC . Three of the best timepieces with minute repeaters are presented in more detail below:

Patek Philippe Reference 5078

Perpetual calendars, tourbillons, astronomical watches, and, of course, minute repeaters: There are hardly any complications that Patek Philippe 's product range doesn't include. A wonderful example of a Patek Philippe model with a rack-and-pinion strike mechanism is the Reference 5078. The sophisticated repeater movement is located on the left side of the case and is visible thanks to the sapphire crystal case back.

This elegant timepiece with its 38 mm case is distinguished not only by its first-class movement but also by its incredibly exquisite design. Available with a platinum, white gold, or rose gold case and optionally with Breguet or feuille hands, the Patek Philippe Reference 5078 presents itself as a classic through and through – a true eye-catcher. The watch is rounded off by a high-quality enamel dial that perfectly complements the authentic overall appearance of the watch.

Lange & Söhne Zeitwerk Minute Repeater

The long-established company Lange & Söhne presents the Zeitwerk Minute Repeater collection, which will amaze watch enthusiasts with a passion for minute repeaters. What's special about the collection: It includes the first mechanical wristwatch with a jumping numeral display and decimal minute repeater. The mechanism can be manually activated using a pusher, after which the timepiece—unlike many competing products—announces the tenths of a minute, not the quarter of an hour.

One glance at this Zweitwerk watch is enough to realize that this is the epitome of a luxury product. The case is made of platinum and houses a dial with a harmoniously integrated small seconds hand and a practical power reserve indicator. Another highlight are the cleverly integrated recesses in the dial, through which you can admire the hammers striking the gong.

IWC Portuguese minute repeater

A striking mechanism comprising approximately 250 parts, a meticulously finished movement, and a characteristic railway minute track on the dial edge: The Portuguese Minute Repeater from IWC impresses with a large number of impressively sophisticated elements. With its unfussy feuille hands, a small seconds subdial discreetly embedded at the 6 o'clock position, and Arabic numerals, IWC clearly embraces tradition and classicism, creating a luxurious timepiece that truly represents the pinnacle of watchmaking.

Anyone who wants to see how the hammers work together with the slides and gongs to produce sounds can do so through the sapphire crystal caseback of this IWC model. You can't help but notice the attention to detail, which is particularly evident in the movement's finish with perlage and Côtes de Genève.

Why a minute repeater watch is unique

A clock that chimes the hours, quarter hours, and minutes is always a unique product. Even if several clocks are manufactured with the same slider, the same gongs, and other elements, and from the exact same materials, the tones of the final products will never sound exactly the same. This means that two clocks with the same striking mechanisms and the same components will still not be exactly alike.

This is primarily due to the great complexity of minute repeater watches. Due to the use of several hundred parts and the complex mechanism, a tone analysis always reveals at least subtle differences between two timepieces of identical material and construction. A minute repeater watch thus essentially has its own unique fingerprint in the form of its own unique sound.

The value of a minute repeater watch: Why it's a worthwhile investment

Those who desire to own a repeater watch often do so out of sheer fascination with the technical mastery behind it and the almost incomprehensible complexity of the movements. Many collectors who are able to fulfill their dream of owning a minute repeater watch therefore never consider selling their new gem. On the other hand, these special products are also particularly interesting for those who anticipate a resale from the outset and view the wristwatch with "tone time" primarily as an investment.

Generally speaking, you should always expect relatively high prices for a repeater timepiece. The sheer amount of work that goes into the models and the multitude of intricate parts drive up the costs. The Patek Philippe reference 5078 presented in this article, for example, costs over €300,000, while the more "affordable" IWC model still commands more than €60,000. Minute repeater watches are clearly not something you can casually afford. Quite the opposite: Purchasing them represents a significant investment that should be carefully considered and is not within everyone's reach.

In many cases, repeater watches are excellent investments. They are products of the finest watchmaking, featuring sophisticated technology that will remain "up-to-date" for years and decades—at least with regard to the striking mechanism. Due to the complex and time-consuming manufacturing process, these watches are often produced in very limited numbers. This also means that demand for these exquisite models is often significantly greater than the supply of available products. As a result, these masterpieces generally retain their value very well, allowing them to be resold easily and often at a profit.

Conclusion - An acoustic masterpiece: The minute repeater

Repeater timepieces are a symbol of the technical feats that talented watchmakers can accomplish and are admired by watch enthusiasts worldwide. These wristwatches, which audibly indicate the time using various tones, feature sophisticated striking mechanisms and operate with a complex mechanism that is truly astounding. Therefore, it's no surprise that the minute repeater remains one of the most coveted and fascinating complications a watch can boast.

Über den Autor

Authors | Alessandro Rossi

Authors | Alessandro Rossi

Alessandro spent his youth in Florence, surrounded by the city's classical art and craftsmanship. His father, a watchmaker, let him help at the workbenches as a child.

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