With a 41mm case, a frosted gold case finishing, openworked dial, double balance movement and - last but not least - gem-set rainbow bezel, the present watch is a statement piece such as few others.

While until a few years ago gem-setting was somewhat overlooked by the collecting community, nowadays it has been fully recognized among the most complicated and attractive decorative techniques. Pioneered by few brands in the early 1970s – and on sport watches by Rolex in the 1990s – rainbow setting is now counted among the ultimate levels of gem-setting. The difficulty of procuring stones with the exact color gradient required for a flawless result is enormous – and one of the reasons for the scarcity of these watches. Furthermore when analyzing the setting, one can appreciated the asymmetric cut of the gems, designed so that the rainbow effect seamlessly integrates itself with the angular octagonal design of the bezel: a true masterpiece both in design and in execution as well.

Powering this beast is AP’s signature double balance wheel movement. While the intuition behind it is quite straightforward (two balance wheels double the inertial mass, ensuring better timekeeping), the technical challenges involving friction and energy management that had to be overcome in order to create the calibre are enormous.

Offered in practically “as new” condition and complete of its Warranty and even purchase documents, the present timepiece is an icon of modern watchmaking that any serious collector should not miss the opportunity to acquire.