5-Axis CNC & Horological Architecture
The Custom Patek Philippe Grand Complications Minute Repeater 18K White Gold Reference 5178G-012 is a 5-axis Swiss CNC commission machined in 18K White Gold Au750 (40.0 mm x 10.53 mm) weighing 101.1g on our Mettler-Toledo analytical balance, driven by Patek Philippe Cal. R 27 PS - Cathedral Gongs regulated to +0.5 s/d, 302 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 — Grand Complications Minute Repeater | Ref. 5178G-012 | SKU: AT-AU750-5178G-012-W231 |
|---|---|
| 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) | 101.1g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| 04 / Custom Bezel, Gem-Setting & Case Geometry | Hand-Finished 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 101.1g 18K White Gold • 40.0 mm x 10.53 mm |
| 05 / Regulated Super Clone Movement Calibre | Patek Philippe Cal. R 27 PS - Cathedral Gongs — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 302 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 • 30m / 3 ATM |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 40.0 mm x 10.53 mm • Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands • Integrated 18K White Gold Hand-Stitched Alligator / Elastomer Strap & Solid Gold Folding Clasp with Deep Laser Hallmarks |
Engineered inside our Geneva 5-axis CNC Patek Philippe custom atelier, the Custom Patek Philippe Grand Complications Minute Repeater 18K White Gold Reference 5178G-012 is machined from solid 18K White Gold Au750 billets to micron-level tolerances (40.0 mm x 10.53 mm). Every bevel, lug chamfer, and Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands is hand-finished on our watchmaker bench, yielding a certified reference weight of 101.1g verified under our Fischer XRF and Mettler-Toledo QC protocol.
What Are the Horological & Metallurgical Benchmarks of Patek Philippe Patek Philippe Flagship Ref. 5178G-012?
The Patek Philippe Patek Philippe Flagship Reference 5178G-012 is a precision-engineered luxury timepiece crafted in 18K White Gold Au750 (40.0 mm x 10.53 mm) with Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands, Hand-Finished 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 101.1g, because the Patek Philippe Cal. R 27 PS - Cathedral Gongs 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 Grand Complications Minute Repeater 18K White Gold — Official Ref. 5178G-012 (SKU: AT-AU750-5178G-012-W231).
- 5-Axis CNC Metallurgy: 18K White Gold Au750 case (40.0 mm x 10.53 mm) and Hand-Finished 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
- Verified Bench Mass: 101.1g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: Patek Philippe Cal. R 27 PS - Cathedral Gongs operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.5 s/d, 302 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 30m / 3 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the Patek Philippe Patek Philippe Flagship horological sub-silo, collectors also compare the Patek Philippe Twenty 4 Automatic Ref. 7300/1200A-001 (107.6g) and the Patek Philippe Grand Complications Sky Moon Celestial 18K Rose Gold Ref. 6102R-001 (128.0g).
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- 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 5178G-012 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 101.1g 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 Cal. R 27 PS - Cathedral Gongs tested on the atelier workbench?
We record a personalized 4K bench video showing the Patek Philippe Cal. R 27 PS - Cathedral Gongs (28,800 vph, 72-hour reserve) running at +0.5 s/d, 302 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
What dial and bezel specifications distinguish Patek Philippe Patek Philippe Flagship Ref. 5178G-012?
Reference 5178G-012 combines Hand-Finished Collector Dial with Solid 18K Gold Applied Hour Markers & Hands and Hand-Finished 18K White Gold Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 40.0 mm x 10.53 mm 18K White Gold Au750 case weighing 101.1g, verified via Fischer XRF spectroscopy and powered by Patek Philippe Cal. R 27 PS - Cathedral Gongs.
Custom Patek Philippe Grand Complications Minute Repeater 18K White Gold Ref. 5178G-012
5-Axis Swiss CNC 18K White Gold Au750 • 101.1g Verified Mass • Regulated Patek Philippe Cal. R 27 PS - Cathedral Gongs