
Foversta provides a detailed comparison of the Patek Philippe Ref. 5170G and its predecessor, the Ref. 5170J, highlighting the aesthetic evolution of Patek Philippe's in-house chronograph. This insightful review explores how a change in case material and dial design can dramatically transform a watch's character, from formal elegance to contemporary versatility.








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.
Whilst I like the J more for its elegant spirit,I must say that theG is very appealing too. Can we expect a 5170p with blue dial? Modern classics already. Mo
I tried to imagine a 5170P with a blue dial. I think that this combo works much better with the 5070... it will be difficult to do better! Fx
Numerals are to die for. Still warming up to the 5170 as a whole ... The 5070 has a very special place in all of horology and is hard to replace. FX, in terms of refinement, how would u rate the movement vs the previous lemania ? Never been able to have this and the 5070 side by side. Thanks again for the great write up.
The new movement brings a lot in terms of performance. But there was something very charming in the previous movement: the shape of the bridge, the layout of the movement... Fx
... What we don't really get is the difference of texture with the yellow. On pics feels like a "dead" white that doesn't change with different light situations. Good looking watch though
Yes, the subtle differences of the dials are difficult to catch... Fx
This thread is active on the Patek Philippe forum with 31 replies. Share your knowledge with fellow collectors.
Join the Discussion →