In 2009, Blancpain introduced the L-Evolution watch, based on the Caliber 13R0. On the design front, the L-Evolution has a complex dial with a cut-out central opening that reveals the baseplate’s Cotes de Geneve decoration. Also, the L-Evolution’s case is fitted with new detachable lugs, a feature that facilitates attaching a metal bracelet. L-evolution watches also share 3 instantly recognizable design elements: a sporty 43.5mm case with double-stepped sides, oversized numerals, and multi-level skeletonized dials. Of those, the one you’re likely to notice first is the oversized, three-dimensional Arabic “3” and “9”. The L-Evolution watch collection includes the 8 Day Automatic, 8 Day, 8 Day Tourbillon GMT, and the GMT Alarm models.