A Fine Pink Gold Automatic Perpetual Calendar Sweep Seconds Wristwatch with Retrograde date and Moon Phases, Patek Philippe & Co., Genève, Movement No. 1957694, Case No. 2998733, Ref. 5050R-010, Circa 1997

18k, nickel lever movement, 31 jewels, Gyromax balance, adjusted to heat, cold, isochronism and 5 positions, stamped with the Seal of Geneva, 21k gold rotor engraved with the Patek Philippe calatrava cross, silvered matte dial, applied pink gold Roman numerals, pink gold feuille hands, inner ring for retrograde date with corresponding blued steel hand, three rectangular apertures indicating leap year indicator, day and month, aperture for moon phases at VI o'clock, circular water-resistant type case with concave bezel, downturned lugs, sapphire display screw back, case, dial and movement signed, with an 18k pink gold Patek Philippe buckle.

Accompanied by a Patek Philippe Certificate of Origin, booklets, red leather folder, tag, Patek Philippe fitted winding box, outer packaging and wood and pink gold setting pin.

This model, Ref. 5050, was first launched in 1995 and production was halted in 2002. In that time period there were only about 1000 pieces made, of which maybe only 200 or so were pink gold. To date, fewer than 10 examples have appeared in the market in pink gold with Roman numeral dials.

Patek Philippe made very few models with retrograde complications.