Andersen Geneve has used its last remaining extra-thin Frederic Piguet cal. 15 movements for the Grande Jour et Nuit Edition 2014, the final run of the brand’s signature complication which indicates the time on a 24 hour scale.

Svend Andersen, who co-founded the AHCI in 1985 with Vincent Calabrese, first created the Jour et Nuit (day and night) for Cartier in 1998, as a limited edition Pasha wristwatch. With the Frederic Piguet cal. 15, a large, ultra-slim high pocket watch calibre, as a base movement, the simple yet elegant Jour et Nuit display has since become one of Andersen’s signature complications. Now with only 50 movements remaining, the Andersen Jour et Nuit will take its final run. Developed in the fifties, the Piguet cal. 15 is a classically styled pocket watch calibre, with large, elegant bridges and a height of just 1.9 mm. Though still made by Frederic Piguet, it is no longer common outside of Swatch Group companies like Blancpain and Breguet. Andersen’s remaining 50 calibres will go into the Grande Jour et Nuit Edition 2014, with 30 pieces in red gold and another 20 in white gold. 

The Jour et Nuit indicates the time on a 24 hour scale, distinguishing between day and night. Day time from 6 am to 6 pm is on the outer hour track, while night time is on the inner track,and the subsidiary seconds is at six o’clock.  Various materials are available for the watch dial, including hammered blued gold (pictured), as well as semi-precious stone like jade, aventurine and white marble.

The Grande Jour et Nuit Edition 2014 will retail for 52,500 Swiss francs (~US$59,600) in red gold and 54,000 Swiss francs (~US$61,300) in white gold.