PIERRE KUNZ, Bi-Retrograde, Spirit Of Challenge, Ref. G403 Sport

PIERRE KUNZ, Bi-retrograde, Spirit of Challenge, Ref. G403 Sport, circa 2010 A highly unusual and rare, large, stainless steel automatic chronograph wristwatch with “tissage” blue dial, bi-retrograde chronograph registers, am/pm indication, black rubber strap with secured double deployant clasp. Fitted with a Cal. PK2010 002, based Valjoux, mechanical, self-winding, hack mechanism, blued steel screws, steel case back secured by six screws, sapphire crystal, screwed crown. Dial, case and movement signed. Diam. 45 mm. Thickness 15.15 mm. Approx. overall length for bracelet 170 mm. Master of complications, Pierre Kunz offers here a very innovative watch, whose bi-retrograde chronograph is combined with a special day/night indication, located at 6 o'clock, that entails a rotation of the disc bearing the indexes, visible thanks to a semi-skeletonized dial. The user knows immediately at what time of day he is, with black indexes in the morning or white indexes for the evening.