
NardinNut's post highlights the Patek Philippe Ref. 5170, a timepiece often celebrated for its classic chronograph design, but here appreciated for its unexpected versatility in casual settings. This article explores NardinNut's personal experience with the watch and synthesizes community insights on its wearability and technical nuances, making a decade-old reference relevant to today's collectors.

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.
Exactly how I’d wear it.
I esp love the breguet numerals.
this is a great Patek. Can you share your strap supplier/model?
more casual 👍 Are the pushers smooth to operate ?
I highly recommend his straps. Most comfortable straps you’ll ever wear. Downside is that he doesn’t make off sizes like 21mm that PP takes.
I’ve read comparison reviews (against ALS) of the 5170 that mention the Chrono is harder to engage (vs ALS). I’ve never handled an ALS so I can’t compare, but my 5170 is extremely smooth and easy. It engages faster than my Omega 321 reissue or PF chrono, but doesn’t have that crisp bite the 321 or PF chrono has (not necessarily a negative).
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