Reference: 5070RDate: 27th April 2006Movement: 24-jewel Cal.CH27-70/157 manual wind, adjusted to heat, cold, isochronism and 8 positions, freesprung Gyromax balance, stamped with the Seal of Geneva, No.3362782Dial: Silvered, applied gilt Arabic numerals, black outer 1/5th second track with Arabic five minute markers, tachymetre scales, subsidiary dials at 3 and 9 for constant seconds and 30 minute recording, gilt leaf hands, gilt centre chronograph handCase: Polished round, screw down exhibition back, crown flanked by twin buttonsStrap/Bracelet: Dark brown Patek Philippe alligator leatherBuckle/Clasp: Signed 18K gold buckleSigned: Case, dial & movementSize: 42mm Accompaniments: Patek Philippe box, outer card, Certificate of Origin, original Invoice, brochures, swing tag