Among the most demanding of watchmaking complications, the minute repeater converts time into sound. When the owner activates a slide or pusher on the case, the mechanism strikes the hours, quarter-hours, and minutes in sequence on small gongs within the movement. It is a complication with roots in an era before reliable artificial light, when the ability to read the time in darkness or without looking at a dial had genuine practical value. By the time Cartier was incorporating it into wristwatches in the early twentieth century, the complication had become primarily a demonstration of horological mastery.
The Complication
The minute repeater operates on a precise acoustic logic. A low note strikes once for each completed hour. A double strike, using both a low and a high note together, marks each quarter-hour elapsed since the last hour. A high note then strikes once for each minute beyond the last quarter. A listener who hears two low strikes, one double strike, and four high strikes knows the time is twenty-nine minutes past two.
The mechanism required to produce this sequence is intricate: a series of racks and snails that read the position of the time train and translate it into the correct number of hammer blows against the gongs. Fitting such a movement into a wristwatch case, rather than a pocket watch, adds further difficulty. The thinner the case, the less room for the striking train, and the greater the demand on the maker's skill. It is this combination of miniaturisation and precision that gives the complication its particular prestige among collectors.
Cartier's Minute Repeater Wristwatches
Cartier produced minute repeater wristwatches from the early twentieth century. The movements were supplied by LeCoultre, later Jaeger-LeCoultre, through the European Watch and Clock Co., the joint venture established between Cartier and Jaeger in the early 1920s to supply and regulate the movement supply for Cartier's watches. The EWC arrangement gave Cartier reliable access to high-grade movements, including those capable of carrying striking complications.
The Tortue, the curved rectangular case form Cartier introduced in 1912, became a particularly favoured vehicle for the minute repeater. Its relatively generous interior dimensions, compared with some of the thinner Cartier case forms, made it more tractable as a host for a striking movement. The Tortue's slightly archaic, cushion-like silhouette also suited the character of the complication: both had something of the connoisseur's object about them, set apart from the more streamlined forms that came to dominate the 1930s.
Auction Record: The Tortue Repeater
The position of Cartier's minute repeater wristwatches in the collector market came into sharp focus at Antiquorum in Geneva in 2002, when a Cartier Tortue minute repeater wristwatch of around 1928 sold for CHF 993,500, a record price for any Cartier wristwatch offered at auction at that time. The result registered both the rarity of these pieces and the appetite among serious watch collectors for Cartier's early high-complication work.
A second Tortue minute repeater, also dating from 1928, came to auction at Antiquorum in 2004 and sold for $640,500. Two auction appearances in two years for watches of this type was itself unusual, and the results together helped establish a market understanding of the form's value.
The auction records are a measure of survival as much as of original production. Cartier's minute repeater wristwatches were never made in large quantities, and those that have come through the century in good condition represent a small fraction of total output.
Sources
- Hans Nadelhoffer, Cartier: Jewelers Extraordinary (Thames and Hudson, 1984; revised 2007), pp. 243, 264 et al.
- Antiquorum, lot 60, October 2002: Cartier Tortue minute repeater No. 22302, CHF 993,500
- Antiquorum, lot 267, 2004: Cartier Tortue minute repeater No. 20797, USD 640,500
