Made in a limited edition of just 26 pieces, the Grande Reverso Ultra Thin 1931 London Edition with a racing green dial commemorates the opening of Jaeger-LeCoultre London boutique.

Jaeger-LeCoultre inaugurated its boutique on Old Bond Street not too long ago, accompanied with the introduction of the Grande Reverso Ultra Thin 1931 London Edition. It features a dial lacquered in British racing green with silvered hour indices, a combination similar to that found in the Reverso Rouge. The flip side of the case is decorated with an engraving of the Palace of Westminster, where the parliament of the United Kingdom meets. And it is also the home of Big Ben, the iconic clocktower that gives the Westminster chime its name.

Inside is the calibre 822, a hand-wound movement that’s nearly 30 years old and one of the most reliable workhorses in Jaeger-LeCoultre’s stable of movements. The steel case is standard Reverso 1931 size, measuring 46.8 mm long and 27.4 mm wide.

Limited to just 26 pieces, the Grande Reverso Ultra Thin 1931 London Edition costs £6800 inclusive of VAT and is available only at the Jaeger-LeCoultre boutique on 13 Old Bond Street, London, W1S 4SX (Tel: +44 (0) 203 402 1960).

Laurent Ferrier has created a unique version of its Galet Square for Only Watch 2015, featuring a sector dial and steel cushion case reminiscent of early 20th century watches.

A variation on the Galet Square that has striking vintage feel, the Laurent Ferrier Only Watch 2015 edition has a silvered sector dial with blue minute numerals and the brand’s signature assegai (a type of African spear) hands. A tiny “Only Watch 2015” at six o’clock indicates the cause for which it was made: the biannual auction in Monaco to raise funds for research into Duchenne muscular dystrophy.  Known as a sector or scientific dial – a style that is mostly found in early or mid-20th century timepieces- the dial has prominent hour markers connected to a track that circles the dial. It is silver-plated with a vertical brushed finish on the central portion and circular satin finish for the chapter ring. The hour markers on are slightly rounded at their points, a reference to the drop-shaped indices on the standard Laurent Ferrier dial.

The steel case – Laurent Ferrier uses this material only for prototypes and special editions – measures 41mm by 41mm, with straight lugs instead of the curved lugs typical for the brand. They give the case a look similar to that of early wristwatches.

The Galet Square in the regular collection

It’s equipped with the FBN calibre 229.01, a self-winding movement with a micro-rotor designed by Laurent Ferrier together with La Fabrique du Temps, a movement specialist now owned by Louis Vuitton. “FBN” stands for Ferrier, Barbasini and Navas, with the latter two denoting the co-founders of La Fabrique du Temps, Enrico Barbasini and Michel Navas.

The FBN 229.01 as seen in the round Galet Classic

The movement is traditionally and beautifully finished, but modern in construction; for instance it has a direct impulse escapement with twin escape wheels in silicon.

Only Watch 2015 will be held on Novemer 7, 2015 in Monte Carlo, with 40 watches going under the hammer to benefit the Association Monégasque Contre les Myopathies (AMM), a charity that funds research into Duchenne muscular dystrophy. The auctioneer will be Phillips Bacs & Russo. More details are available from Only Watch.