18K FACTORY
SWISS MANUFACTURE & GRAVIMETRIC ASSAY ARCHIVE • GENEVA FISCHER XRF Au750 (75.0%) AU / Pt950 PT • METTLER-TOLEDO SCALE VERIFIED PRIVATE CLIENT CONCIERGE • INSURED VAULT DISPATCH
18K FACTORY GENEVA
MANUFACTURE & XRF ASSAY ARCHIVE
Assay Archive / Patek Philippe / Certificate XRF-750-585 (Ref. 5712A)
STATUS: PASSED • VERIFIED MASS 116.1g
Patek Philippe Nautilus Moonphase & Power Reserve Tiffany Blue Dial Ref. 5712A — XRF Certified Edition
01 • Front Dial Portrait (1 / 7)
MANUFACTURE & GRAVIMETRIC ARCHIVE DOSSIER

Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification

The Patek Philippe Nautilus Moonphase & Power Reserve Tiffany Blue Dial Reference 5712A 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 (+0.4 s/d, 296 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-5712A-W585, this Patek Philippe Nautilus Moonphase & Power Reserve Tiffany Blue Dial Reference 5712A 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. 5712A?

The Patek Philippe Nautilus Reference 5712A is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (40.0 mm x 8.52 mm) with Tiffany Turquoise Lacquer 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 Tiffany Blue Dial — Official Ref. 5712A (Specimen LAB-CNC-5712A-W585).
  • 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 +0.4 s/d, 296 deg Witschi trace.
  • Optical & Pressure Testing: Double anti-reflective sapphire crystal, Tiffany Turquoise Lacquer 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 Ref. 5711/1A (115.1g) and the Patek Philippe Nautilus Moonphase & Power Reserve 5-Axis CNC Case Ref. 5712/1A (116.3g).

REFERENCE-SPECIFIC COLLECTOR Q&A
What laboratory instruments certify Reference 5712A (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 (+0.4 s/d, 296 deg).

Does the 116.1g reading match the authentic original Patek Philippe 5712A 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 5712A?

Reference 5712A 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 +0.4 s/d, 296 deg.

What dial and bezel specifications distinguish Patek Philippe Nautilus Ref. 5712A?

Reference 5712A combines Tiffany Turquoise Lacquer 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 • REF. 5712A

Patek Philippe Nautilus Moonphase & Power Reserve Tiffany Blue Dial Ref. 5712A — 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

MANUFACTURE DIRECT ALLOCATION
$2,270 USDT
Retail Market Estimate: $285,000
LIVE SWISS ASSAY TELEMETRY • BENCH #04 4K QC VIDEO READY
METTLER-TOLEDO
116.1g
1:1 Exact Mass
FISCHER XRF
Ti5 / CNC
5-Axis Swiss Grade
WITSCHI X1
+0.4 s/d
296° • 0.0 ms
Includes personalized 4K scale & XRF video on WhatsApp before dispatch ▶ Sample QC
Request 4K Lab Video
Assay Specimen ID & Official ReferencePatek Philippe — Nautilus Moonphase & Power Reserve | Ref. 5712A | SKU: LAB-CNC-5712A-W585
Fischer XRF Elemental Purity & Alloy904L 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 DimensionSatin-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 ChronometryPatek Philippe Cal. 240 PS IRM C LU - 22K Gold Micro-Rotor — Swiss Super Clone Mechanical Calibre Regulated to +0.4 s/d, 296 deg
Isochronism Frequency & Autonomous Power Reserve72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel
Double AR Sapphire Crystal & Barometric RatingScratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 60m / 6 ATM
Dial Metallurgy & Clasp Hallmark Verification40.0 mm x 8.52 mm • Tiffany Turquoise Lacquer Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp
Patek Philippe Ref. 5712A • 116.1g
$2,270 USDT
● Added to Private Selection Portfolio
Private Client Concierge Desk

Allocation Portfolio (0)

Pre-Shipment 4K Scale & Timing Video Included Insured Vault Delivery
Verified Reference Mass 0.0g Verified
Total Private Allocation $0
Includes Personalized 4K Mettler-Toledo Scale & Witschi Timegrapher Dossier
All removed bracelet links accompany your timepiece inside the presentation box • Insured Brink's / DHL Express Priority
PRIVATE CLIENT DESK
Geneva • Monte-Carlo • Place Vendome

Private Allocation & 4K QC Dossier

1. Select Preferred Settlement Arrangement:
Allocation Dossier Reference
ALLOC-2026-884920
Total Allocation Value
$26,900 USD
Pre-Shipment 4K Laboratory Verification Protocol: Before any funds are finalized or your timepiece is dispatched, our Senior Watchmaker records a personalized 4K video of your exact serial number on a calibrated Mettler-Toledo gram scale and Witschi Chronoscope timegrapher.
GRAVIMETRIC & HOROLOGICAL SPECIFICATION MATRIX

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