A. Lange & Söhne Brand's Blockbuster

This Brand's Blockbuster introduction for SIHH 2013 was its Grand Complication but the company launched another highly complicated watch, the 1815 Rattrapante Perpetual Calendar. It contains the new L101.1 caliber, a hand-wound movement with 636 components.

The L101.1 is the company’s eighth proprietary chronograph movement. The moonphase display, consisting of a solid gold disk bearing 410 stars, is so precise that it will be off by just one day in 122 years. The watch is 41.9 mm in diameter and 14.7 mm thick and comes in platinum ($213,000) and rose gold ($189,000).

The brand’s new watches also included the Grande Lange 1 Lumen, named for its luminous big date, time and power- reserve displays. Lange says it is the first watch with a luminous big date display, which was made possible by a special construction: a section of the dial is covered with sapphire coated with a material that blocks most light but allows the invisible UV spectrum to pass through it.

These UV rays charge the luminous material on the date-digits disks while they are beneath the sapphire window so that when the dig- its rotate into the date apertures, they are glowing brightly.

Lange used this principle in its Zeitwerk Luminous watch of 2010. The watch contains the L095.2 in- house, hand-wound movement, which was launched last year. The watch is 40.9 mm in diameter and has a platinum case. It is being produced in a limited edition of 200 pieces ($70,400).