
Dr.kol's detailed comparison of the Patek Philippe Nautilus references 3712 and 5712 remains a vital resource for collectors. His analysis, enriched by technical drawings and side-by-side imagery, highlights the subtle yet significant differences in case construction and design philosophy between these two iconic models. This post is particularly valuable for understanding the evolution of the Nautilus case from Gerald Genta's original two-part concept to the more complex multi-part structure of later references.



The Patek Philippe Complications Reference 5712 is a notable offering within the brand's Complications collection, distinguished by its asymmetrical dial layout and a suite of practical indications. It presents a sophisticated blend of functionality and design, offering a moon phase, power reserve indicator, and an analog date display, all arranged to create a distinctive visual identity that sets it apart from more traditional Patek Philippe designs.
This particular reference features a stainless steel case measuring 40 mm in diameter, housing the self-winding caliber 240 PS IRM C LU. This movement is known for its slim profile, achieved through the integration of a micro-rotor, contributing to the watch's comfortable wearability. The watch is fitted with a sapphire crystal and offers a water resistance of 60 meters, with a power reserve of approximately 48 hours.
For collectors, the 5712 represents an accessible entry into Patek Philippe's complicated timepieces, offering a range of functions without the complexity of a perpetual calendar or chronograph. Its stainless steel construction and integrated bracelet provide a robust and versatile option, appealing to those seeking a daily wearable complicated watch. The reference has been in production since 2006, with the 5712/1A denoting the stainless steel bracelet variant.
maybe due to its rarity (though that seems to make little sense). You have however missed 2 details which I find preferable on the 5712. First the font on the date wheel is larger, therefore easier to read. Second, the crown is larger on the 5712. The small crown is a bit frustrating on the 3712 and the other "original" Nautilus versions.
I did not even try to make a complete list. There are also some small differences on the seconds sub-dial, power reserve dial, the hour markers are also a little bit different, etc. I don't care which version is rare and which one not. The rarity can only influence to the resale price and I will not sell my 3712. What counts for me is the case construction and the "originality" of 3712. However, if I would own a 5712, I would wear it with great pleasure. Best, Kari
The devil is indeed in the detail. I start to see why you love your 3712.
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