Patek Philippe Blue Chronographs: 5070P, 5170P, 5172G

The Patek Philippe reference 5070, part of the Complications collection, marked a significant return for the brand to large-format chronographs. Introduced in 1998, it was the first non-perpetual calendar chronograph produced by Patek Philippe since the reference 1463, which ceased production in the early 1960s. Its design drew inspiration from a unique Patek Philippe aviator's watch from the 1940s, characterized by its prominent case and dial layout, yet reinterpreted for a contemporary audience. This reference established a new aesthetic direction for the brand's chronographs, moving towards more substantial case dimensions.

The watch features a 42mm case, initially offered in 18k yellow gold, housing the manual-winding Caliber CH 27-70. This movement, based on a Nouvelle Lémania ébauche, was extensively finished and modified by Patek Philippe, meeting the brand's stringent quality standards. It provides a power reserve of approximately 55 hours. The dial, in this specific configuration, is black, protected by a sapphire crystal, and the watch is water-resistant to 30 meters. The fixed bezel frames the dial, and the watch is typically fitted with a leather strap.

Reference 5070 appeals to collectors interested in modern Patek Philippe chronographs that combine traditional movement architecture with a more contemporary case size. Its limited production run and the subsequent introduction of variants in other precious metals contribute to its collectibility. The reference represents a distinct period in Patek Philippe's chronograph history, bridging vintage inspirations with a new era of larger watch designs.

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 Chronograph reference 5172 represents a contemporary interpretation of the classic manually wound chronograph within the brand's collection. It succeeded the reference 5170, introducing updated case proportions and dial aesthetics while retaining the traditional two-register chronograph layout. This reference is distinguished by its round pushers and a slightly larger case diameter, offering a modern presence on the wrist while honoring Patek Philippe's heritage in complicated watchmaking. It is a key offering for collectors seeking a pure chronograph function without additional complications.

The 5172 is typically presented in a precious metal case, housing the in-house caliber CH 29-535 PS. This manual-wind movement is visible through a sapphire crystal case back, showcasing its traditional architecture and finishing. The movement provides a substantial power reserve, ensuring reliable timekeeping and chronograph operation. The front crystal is also sapphire, protecting a dial designed for legibility with applied numerals and a pulsometer scale.

This reference appeals to collectors who appreciate Patek Philippe's commitment to traditional haute horlogerie and the art of the manually wound chronograph. Its design cues, such as the syringe hands and applied Breguet numerals, evoke vintage chronographs while being executed with contemporary precision. The 5172 stands as a testament to Patek Philippe's enduring capability in producing high-quality, in-house chronograph movements, positioning it as a significant piece for enthusiasts of complicated timepieces.