Patek Philippe’s caliber 27-460 evolved from one of the most legendary movements of all time, the caliber 12-600 – the brand’s first automatic movement. Compared to its predecessor, the cal. 27-460 features two noteworthy upgrades: the jewel supporting the rotor was replaced by a flatter ball-bearing system, and a redesigned balance cock featuring a new, adjustable balance spring stud carrier. In fact, beyond these differences, the movement remained largely the same as caliber 12-600, which itself had a series of incremental upgrades through the years. The new caliber designation reserved for this final iteration indicates Patek Philippe finally deemed to have achieved perfection for its automatic caliber, and thus gave a new numeric designation to the final evolution.

The reference 3429 was first released in 1960 with research indicating approximately 1000 timepieces were made in mostly yellow and pink gold, with few examples in white gold, and only two known in platinum. The present white gold wristwatch is one of only approximately 15 known, and is preserved in outstanding overall condition. The water resistant Wenger case with screw-down case back exhibits strong proportions, clean edges, and sharp hallmarks found on the case and lug sides. The Stern Frères dial is similarly well-preserved, featuring a raised hard enamel signature, and wonderful sheen. It is interesting to note the reference 3429 is one of only a handful of 1950/60s Patek Philippe models to feature the “PP” crown, including the iconic reference 2526.

The present timepiece from the Ride the Wave collection is a rare, elegant, and classic time capsule of mid 20th-century horology, and is sure to attract collectors who appreciate the craftsmanship of Patek Philippe’s master watchmakers.