Edouard Koehn Legacy Rattrapante Four Seasons Winter #01/25

From Edouard Koehn's Legacy Rattrapante Four Seasons series, the Winter edition. A split-seconds (rattrapante) chronograph, long regarded as the most complex of all chronograph complications and the signature of master watchmaker Edouard Koehn. The midnight blue dial is engraved in fine concentric sunray guilloché that reads near-black in shadow and reveals its blue only in raking light, with Clous de Paris guilloché subdials and a lone red-tipped rattrapante hand. Exclusive self-winding movement on a Concepto base, entirely manufactured in La Chaux-de-Fonds. A 40mm polished steel case water resistant to 50 metres, on navy alligator leather. Limited to 25 individually numbered pieces.