Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Patek Philippe Nautilus Moonphase & Power Reserve Reference 5712/1A is a direct Swiss foundry specimen engineered in 904L Stainless Steel Custom Architecture (40.0 mm x 8.52 mm) with a certified Mettler-Toledo mass of 116.1g, Fischer XRF Au750 metallurgical verification, and Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor running at 28,800 vph (+0.7 s/d, 303 deg) with a 72-hour power reserve and 60m / 6 ATM rating.
Catalogued in our direct Swiss foundry Patek Philippe assay archive under Specimen Code LAB-CNC-5712/1A-W43, this Patek Philippe Nautilus Moonphase & Power Reserve Reference 5712/1A is smelted and CNC-machined in 904L Stainless Steel Custom Architecture (40.0 mm x 8.52 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 116.1g and scanned via non-destructive Fischer XRF spectroscopy.
What Are the Horological & Metallurgical Benchmarks of Patek Philippe Nautilus Ref. 5712/1A?
The Patek Philippe Nautilus Reference 5712/1A is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (40.0 mm x 8.52 mm) with Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 116.1g, because its Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Foundry & Laboratory Assay Specifications:
- Foundry Specimen Entity: Patek Philippe Nautilus Moonphase & Power Reserve — Official Ref. 5712/1A (Specimen LAB-CNC-5712/1A-W43).
- XRF Metallurgical Assay: 904L Stainless Steel Custom Architecture certified for elemental composition and hallmark integrity.
- Mettler-Toledo Mass: 116.1g verified gravimetric parity matching the authentic manufacture reference.
- Chronometric Calibre: Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.7 s/d, 303 deg Witschi trace.
- Optical & Pressure Testing: Double anti-reflective sapphire crystal, Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, and 60m / 6 ATM barometric sealing.
Within the Patek Philippe Nautilus horological sub-silo, collectors also compare the Patek Philippe Nautilus Self-Winding Custom SW Dial 22K Gold Rotor Ref. 5711/1A (115.0g) and the Patek Philippe Nautilus Self-Winding Custom SW Dial 22K Gold Rotor Ref. 5711/1A-001 (115.1g).
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- Technical Research Monograph: Witschi Chronoscope X1 6-Position Watch Timing & Rate Guide (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K FACTORY Homepage (Complete 774-Watch Solid 18K Gold & Pt950 Register)
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- Metallurgical & Escrow Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
What laboratory instruments certify Reference 5712/1A (Patek Philippe)?
Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (116.1g), a Fischer XRF spectrometer (904L Stainless Steel Custom Architecture), and a Witschi Chronoscope (+0.7 s/d, 303 deg).
Does the 116.1g reading match the authentic original Patek Philippe 5712/1A weight?
Yes. Our CNC foundry machines the 904L Steel Edition case and bracelet to replicate the exact 116.1g reference mass of the authentic manufacture timepiece.
What are the movement specifications for Reference 5712/1A?
Reference 5712/1A is powered by the Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated across six positions to +0.7 s/d, 303 deg.
What dial and bezel specifications distinguish Patek Philippe Nautilus Ref. 5712/1A?
Reference 5712/1A combines Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands and Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 40.0 mm x 8.52 mm 904L Stainless Steel Custom Architecture case weighing 116.1g, verified via Fischer XRF spectroscopy and powered by Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor.
Patek Philippe Nautilus Moonphase & Power Reserve Ref. 5712/1A — XRF Certified Edition
Fischer XRF Verified 904L Stainless Steel Custom Architecture • Mettler-Toledo 116.1g • Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor
| Assay Specimen ID & Official Reference | Patek Philippe — Nautilus Moonphase & Power Reserve | Ref. 5712/1A | SKU: LAB-CNC-5712/1A-W43 |
|---|---|
| Fischer XRF Elemental Purity & Alloy | 904L Stainless Steel Custom Architecture — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| Mettler-Toledo Gravimetric Mass (g) | 116.1g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Tolerance, Gem-Setting & Case Dimension | Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal • 116.1g 904L Steel Edition • 40.0 mm x 8.52 mm |
| Calibre Reference & Witschi Chronometry | Patek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor — Swiss Super Clone Mechanical Calibre Regulated to +0.7 s/d, 303 deg |
| Isochronism Frequency & Autonomous Power Reserve | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| Double AR Sapphire Crystal & Barometric Rating | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 60m / 6 ATM |
| Dial Metallurgy & Clasp Hallmark Verification | 40.0 mm x 8.52 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |