PPF Patek Philippe Nautilus 5726/1A-001 Annual Calendar
PPF’s execution of the functional annual calendar module within an 11.4mm case profile establishes this reference as the definitive benchmark for high-complication Nautilus replicas.
Powered by Clone Caliber 324 S QA LU 24H/303
The Clone Caliber 324 S QA LU 24H/303 represents a notable achievement in modular movement cloning. Rather than relying on a modified Miyota 9015 which inflates case proportions, PPF utilizes a dedicated clone 324 base fitted with a custom calendar module. This allows the recessed pushers on the case flanks to actively engage the day, date, month, and moon phase/24-hour subdial. The balance wheel operates at 28,800 vph, and the rotor features the correct Calatrava cross engraving with precise perlage on the base plates.
⏱ Accuracy Profile:
±5–8 s/day (regulated clone caliber)
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Day, date, month, moon phase indicator, and 24-hour subdial
- ✅ Winding Direction: Unidirectional
Technical Notice: Clone 324 Movement
The replica market currently produces only the Clone 324 movement. Even if movement bridges are engraved “330”, the mechanism operates as Clone 324.
Practical implication: The seconds hand does not stop when setting the time. This is correct behavior for this movement and ensures maximum long-term stability.
Technical Specifications
THE BUILD904L Stainless Steel
The 40.5mm case maintains the strict 11.4mm thickness of the genuine article, featuring the iconic porthole construction with alternating brushed and polished finishing.
THE DIALRuthenium Grey Sunburst
Features a sharp horizontal embossed pattern with applied white gold-plated markers. The ruthenium grey tone shifts dynamically under varying lighting conditions.
THE BEZEL904L Stainless Steel
Exhibits a precise vertical brush on the flat surface, contrasted by highly polished chamfered edges that align seamlessly with the mid-case.
THE BRACELETIntegrated Steel Bracelet
Features smooth articulation with minimal endplay at the case integration point, secured by a meticulously finished Nautilus fold-over clasp.
Why PPF for This Reference?
Many collectors ask: “Why not GRF?”
Older iterations from GR Factory and others relied on thicker movement bases, resulting in cases exceeding 12.5mm. PPF engineered a custom module for the clone 324, allowing the 5726 to maintain its elegant 11.4mm profile while retaining full functionality of the calendar pushers. The integration of the bracelet to the case also exhibits tighter tolerances.
Full Disclosure: The moon phase disc printing lacks the granular metallic depth of the genuine Patek Philippe execution, and the date font weight can appear marginally thicker on double-digit dates.
Data Sheet
| MODEL REFERENCE |
5726/1A-001 |
| FACTORY / VERSION |
PPF Edition |
| MOVEMENT |
Clone Caliber 324 S QA LU 24H/303 |
| CASE MATERIAL |
904L Stainless Steel |
| WEIGHT & THICKNESS |
165g (approx) | 11.4 mm |
| CRYSTAL & LUME |
Sapphire with AR | Super-LumiNova |
| DIMENSIONS |
40.5 mm × 43.5 mm × 11.4 mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE |
50m stated — professional pressure test recommended before swimming |
Collector Q&A
Q: Does the annual calendar function work like the genuine 5726?
A: Yes, the day, date, month, and 24-hour subdial are fully functional on the PPF version. However, like most mechanical replicas, the month does not automatically jump at the end of 30-day months; it requires a quick manual advancement via the recessed case pushers.
Q: How do I adjust the calendar complications on this PPF model?
A: The calendar functions are adjusted using the four recessed pushers located on the case flanks, exactly like the genuine reference. Always use a proper wooden or plastic pusher tool to avoid scratching the 904L steel case, and avoid adjusting between 8 PM and 3 AM to prevent damaging the calendar module.
Q: Is the case thickness accurate to the genuine Patek Philippe?
A: Yes, PPF has achieved an impressive 11.4mm thickness, which is practically indistinguishable from the genuine 11.3mm profile. This is a significant upgrade over previous factory versions that measured over 12.5mm due to thicker base movements.
Q: What is the most noticeable visual tell on this specific PPF replica?
A: The primary tell lies in the moon phase disc. While functional, the golden moon and stars lack the precise metallic dusting and deep blue lacquer finish found on the genuine dial. Additionally, the grey dial’s sunburst effect can appear slightly warmer under direct sunlight compared to the true ruthenium tone of the original.
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