5-Axis CNC & Horological Architecture
The Custom Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Reference 5740/1G-001 is a 5-axis Swiss CNC commission machined in 18K White Gold Au750 (40.0 mm x 8.42 mm) weighing 183.6g on our Mettler-Toledo analytical balance, driven by Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor regulated to +0.7 s/d, 298 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.
| 01 / CNC Blueprint Entity & Reference | Patek Philippe — Nautilus Perpetual Calendar | Ref. 5740/1G-001 | SKU: AT-AU750-5740/1G-001-W758 |
|---|---|
| 02 / 5-Axis CNC Metallurgy & Gold Purity | 18K White Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| 03 / Analytical Bench Weight (1:1 Reference Mass) | 183.6g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| 04 / Custom Bezel, Gem-Setting & Case Geometry | 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 |
| 05 / Regulated Super Clone Movement Calibre | 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 |
| 06 / Barrel Power Reserve & Balance Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| 07 / Optical Sapphire Crystal (Double AR) & Sealing | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 60m / 6 ATM |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 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 |
Engineered inside our Geneva 5-axis CNC Patek Philippe custom atelier, the Custom Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Reference 5740/1G-001 is machined from solid 18K White Gold Au750 billets to micron-level tolerances (40.0 mm x 8.42 mm). Every bevel, lug chamfer, and Sunburst Blue Horizontally Embossed Dial with Perpetual Calendar & Moonphase Subdials is hand-finished on our watchmaker bench, yielding a certified reference weight of 183.6g verified under our Fischer XRF and Mettler-Toledo QC protocol.
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 the 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 CNC & Chronometric Specifications:
- Blueprint Reference: Custom Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold — Official Ref. 5740/1G-001 (SKU: AT-AU750-5740/1G-001-W758).
- 5-Axis CNC Metallurgy: 18K White Gold Au750 case (40.0 mm x 8.42 mm) and Satin-Brushed Rounded Octagonal Bezel with Mirror-Polished Chamfered Bevels with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
- Verified Bench Mass: 183.6g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.7 s/d, 298 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 60m / 6 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the Patek Philippe Nautilus horological sub-silo, collectors also compare the Patek Philippe Nautilus Self-Winding Master Watchmaker Spec Ref. 5711A (114.9g) and the Patek Philippe Nautilus Moonphase & Power Reserve Geneva Atelier Spec Ref. 5712A (116.7g).
- Parent Brand & Nautilus Silo Hub: Browse All 170 Certified Patek Philippe Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Bespoke VVS Baguette Diamond & Sapphire Setting in 18K Gold (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K CUSTOM Homepage (Complete 774-Watch Solid 18K Gold & Pt950 Register)
- All-Brands Catalogue: Explore Complete 12-Maison Horological Catalogue (/shop/)
- Metallurgical & 4K QC Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
How is the 18K White Gold case of this Patek Philippe 5740/1G-001 machined?
Our Geneva CNC specialists mill the monobloc middle case, bezel, and bracelet geometry on 5-axis Swiss machining centers in 18K White Gold Au750 to achieve the authentic 183.6g reference mass.
Can the bracelet or strap be pre-sized to my exact wrist circumference?
Yes. Choose from 19 precision wrist circumference options (14.0 cm to 22.0 cm, or full unsized factory length). All removed solid links are sealed inside your presentation box.
How is the Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor tested on the atelier workbench?
We record a personalized 4K bench video showing the Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor (28,800 vph, 72-hour reserve) running at +0.7 s/d, 298 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
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.
Custom Patek Philippe Nautilus Grand Complication Perpetual Calendar Sunburst Blue Dial 18K White Gold Ref. 5740/1G-001
5-Axis Swiss CNC 18K White Gold Au750 • 183.6g Verified Mass • Regulated Patek Philippe Ultra-Thin Cal. 240 Q Perpetual Calendar - 22K Gold Micro-Rotor