Limited to only 400 pieces and first released in 2014 as part of the 175th Anniversary Collection, the reference 5975G features Patek Philippe's highly regarded in-house automatic caliber CH28-520, a column-wheel chronograph with vertical clutch. This innovative movement allows the chronograph function to operate at all times with no effect on accuracy, as found in the brand's other contemporary references including the 5980, 5990, and 5960. Instead of the typical counters to totalize the minutes, hours, and seconds, the 5975 has three beautifully executed scales that permit instantaneous measurements: a telemeter to measure distance, a pulsometer to measure heart-rate, and a tachymeter to calculate speed.

Each hour marker is in the 'obus' form - 'obus' from the French word for artillery shell - adding further vintage elegance to the classically designed dial. Contrasted with the lustrous white gold case, the silvered opaline dial has an enamel-like effect, and the charismatic, stepped Art Deco-style lugs are another pleasing homage to the past. This watch harkens to an era where a man or woman might be called upon to wield any industrial capacity they might possess, with accuracy and panache. Offered in pristine, unworn condition, this wristwatch is bound to delight the lover of all things refined and elegant.