Patek Philippe 5136G vs. 5940G vs. 5170P

The Patek Philippe Complications Reference 5136 is a perpetual calendar wristwatch, a notable inclusion within the brand's Complications collection. This reference is distinguished by its perpetual calendar mechanism, which automatically adjusts for the varying lengths of months and leap years, requiring manual correction only once every century. It represents a classic interpretation of a highly functional complication, presented in a traditional round case design. The 5136 was offered with a bracelet, which provided a distinct wearing experience compared to strap-only perpetual calendar models. This reference was discontinued, making it a point of interest for collectors seeking specific configurations from Patek Philippe's past catalog.

This particular reference is known to have been produced in white gold, as indicated by the 'G' suffix in 5136G. It features a self-winding mechanical movement, visible through a sapphire crystal case back. The case diameter is 37mm, a size that balances wrist presence with wearability. The watch is fitted with a sapphire crystal on the front, protecting the dial. The perpetual calendar displays typically include day, date, month, leap year cycle, and moon phases, powered by a caliber known for its reliability and precision.

For collectors, the 5136G offers a combination of a perpetual calendar complication and a gold bracelet, a less common pairing in Patek Philippe's perpetual calendar offerings. Its discontinuation adds to its appeal for those who appreciate specific historical references and configurations. The watch appeals to individuals who prioritize a blend of technical sophistication and a refined aesthetic, with the added comfort and presence of a full gold bracelet. It stands as an example of Patek Philippe's enduring commitment to traditional watchmaking and complicated mechanisms.

The Chronograph reference 5170, introduced in 2010, marked a significant development for Patek Philippe as it was the first serially produced chronograph to feature a fully in-house manufactured movement. This reference succeeded the reference 5070, transitioning from a Lemania-based caliber to a proprietary design, underscoring the brand's commitment to integrated manufacturing for its complications. It represents a modern interpretation of a classic chronograph layout within the Patek Philippe catalog.

The reference 5170 features a case measuring 39.4 mm in diameter and 10.9 mm in thickness, available in 18k white, rose, or yellow gold. It is equipped with the manual-winding caliber CH 29-535 PS, which offers a power reserve of 65 hours. The watch is fitted with a sapphire crystal and is water-resistant to 30 meters. The movement is visible through a sapphire case back, showcasing its intricate finishing.

This reference appeals to collectors seeking a contemporary Patek Philippe chronograph with an in-house movement. Early variants, such as the yellow gold reference 5170J-001, featured a pulsometer scale, which was later replaced by a minute track on subsequent iterations. The various metal options and dial configurations provide distinct aesthetic choices for collectors, reflecting different periods of its production run.

The Patek Philippe reference 5940 is a perpetual calendar wristwatch presented in a cushion-shaped case. It offers a classic interpretation of one of Patek Philippe's signature complications, distinguishing itself with its distinctive case geometry that provides an alternative to the more common round or rectangular perpetual calendar offerings from the manufacture. The reference was initially introduced in yellow gold, with subsequent variants in other precious metals. It represents a refined option for collectors seeking a traditional perpetual calendar with a unique aesthetic.

The watch features an 18k white gold case measuring 37 mm in diameter and 8.6 mm in thickness, housing the ultra-thin self-winding caliber 240 Q. This movement, visible through a sapphire crystal case back, provides a power reserve of 48 hours. The silvery-white dial displays the perpetual calendar indications, including day, date, month, leap year cycle, and moon phases. A sapphire crystal protects the dial, and the watch is water resistant to 30 meters.

Appealing to collectors who appreciate both horological complexity and distinctive design, the 5940 offers a blend of traditional watchmaking and a less conventional case shape. Its cushion case provides a comfortable fit and a notable presence on the wrist, while the perpetual calendar complication ensures its enduring relevance as a high-complication timepiece. The reference has been produced in various gold alloys, offering collectors choices within this specific model line.