百達翡麗，精細及罕有，18K紅金計時碼錶，配玫瑰色錶盤，型號591，1941年製

With Patek Philippe Extract of the Archives confirming production of the present watch with silvery rose dial and raised pink gold numerals and tachymetre scale in 1941 and its subsequent sale on 25 June 1942.

Reference 591 is without question one of Patek Philippe's least known chronograph models. According to research, less than 20 examples of this reference, cased in pink gold, have appeared in public to date, the exceedingly small production rendering it rarer than any other chronograph model of the period.

Reference 591 differs from all other Patek Philippe chronographs by its generous yet subtle case proportions. Its cylindrical body highlighted by a stepped bezel is crowned with four "bean-shaped" lugs with straight sides. Consequently this reference responds particularly badly to insensible polishing as it quickly loses the angle to the bezel and the edges to the lugs.

The present watch is in well-preserved original overall condition, underlined by the full case proportions, its naturally aged rose-coloured dial. Fresh to the market, the present watch is believed to be the nineteenth examples of this reference in pink gold to appear in public to date and only the fourth with such rose dial.

Reference 591 is illustrated in Patek Philippe Wristwatches by Martin Huber and Alan Banbery, second édition, p. 266, pl. 411.