Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Reference 5740/1G-001 is a direct Swiss foundry specimen engineered in 18K White Gold Au750 (40.0 mm x 8.42 mm) with a certified Mettler-Toledo mass of 183.6g, Fischer XRF Au750 metallurgical verification, and Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor running at 28,800 vph (+0.7 s/d, 298 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-XRF-5740/1G-001-W758, this Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Reference 5740/1G-001 is smelted and CNC-machined in 18K White Gold Au750 (40.0 mm x 8.42 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 183.6g and scanned via non-destructive Fischer XRF spectroscopy.
What Are the Horological & Metallurgical Benchmarks of Patek Philippe Nautilus Ref. 5740/1G-001?
The Patek Philippe Nautilus Reference 5740/1G-001 is a precision-engineered luxury timepiece crafted in 18K White Gold Au750 (40.0 mm x 8.42 mm) with Sunburst Blue Horizontally Embossed Dial with Perpetual Calendar & Moonphase Subdials, Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 183.6g, because its Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 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 Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold — Official Ref. 5740/1G-001 (Specimen LAB-XRF-5740/1G-001-W758).
- XRF Metallurgical Assay: 18K White Gold Au750 certified for elemental composition and hallmark integrity.
- Mettler-Toledo Mass: 183.6g verified gravimetric parity matching the authentic manufacture reference.
- Chronometric Calibre: Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.7 s/d, 298 deg Witschi trace.
- Optical & Pressure Testing: Double anti-reflective sapphire crystal, Sunburst Blue Horizontally Embossed Dial with Perpetual Calendar & Moonphase Subdials, and 60m / 6 ATM barometric sealing.
Within the Patek Philippe Nautilus horological sub-silo, collectors also compare the Patek Philippe Nautilus Moonphase & Power Reserve Diamond-Set Bezel 18K Rose Gold Ref. 5712R (106.0g) and the Patek Philippe Nautilus Off-Catalogue Baguette Ruby Bezel 950 Platinum Ref. 5711/112P-001 (245.4g).
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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 5740/1G-001 (Patek Philippe)?
Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (183.6g), a Fischer XRF spectrometer (18K White Gold Au750), and a Witschi Chronoscope (+0.7 s/d, 298 deg).
Does the 183.6g reading match the authentic original Patek Philippe 5740/1G-001 weight?
Yes. Our CNC foundry machines the 18K White Gold case and bracelet to replicate the exact 183.6g reference mass of the authentic manufacture timepiece.
What are the movement specifications for Reference 5740/1G-001?
Reference 5740/1G-001 is powered by the Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 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, 298 deg.
What dial and bezel specifications distinguish Patek Philippe Nautilus Ref. 5740/1G-001?
Reference 5740/1G-001 combines Sunburst Blue Horizontally Embossed Dial with Perpetual Calendar & Moonphase Subdials and Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 40.0 mm x 8.42 mm 18K White Gold Au750 case weighing 183.6g, verified via Fischer XRF spectroscopy and powered by Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor.
Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Ref. 5740/1G-001 — XRF Certified Edition
Fischer XRF Verified 18K White Gold Au750 • Mettler-Toledo 183.6g • Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor
| Assay Specimen ID & Official Reference | Patek Philippe — Nautilus Perpetual Calendar | Ref. 5740/1G-001 | SKU: LAB-XRF-5740/1G-001-W758 |
|---|---|
| Fischer XRF Elemental Purity & Alloy | 18K White Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| Mettler-Toledo Gravimetric Mass (g) | 183.6g — 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 • 183.6g 18K White Gold • 40.0 mm x 8.42 mm |
| Calibre Reference & Witschi Chronometry | Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor — Swiss Super Clone Mechanical Calibre Regulated to +0.7 s/d, 298 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 8.42 mm • Sunburst Blue Horizontally Embossed Dial with Perpetual Calendar & Moonphase Subdials • Integrated Solid 18K White Gold Nautilus Link Bracelet with Fold-Over Deployant Clasp |