Recorded in our Monte-Carlo solid 18K gold Patek Philippe register, the Patek Philippe Grand Complications Sky Moon Celestial Diamond-Set Bezel 18K White Gold Reference 6104G unites authentic Geneva proportions (44.0 mm x 10.58 mm) with a certified 18K White Gold Au750 mass of 128.3g. Every detail of the Diamond-Set Bezel with Solid 18K Gold Applied Hour Markers & Hands, Brilliant-Cut VVS1 Diamond-Set Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and hallmarked clasp is verified under our Fischer XRF Au750 and Mettler-Toledo laboratory protocol.

5 Core Horological & Metallurgical Specifications:

• Registered Entity & Ref: Patek Philippe Grand Complications Sky Moon Celestial Diamond-Set Bezel 18K White Gold — Official Reference 6104G (SKU: MC-AU750-6104G-W225).
• Precious Metal Alloy: 18K White Gold Au750 with deep mechanical hallmarking and 5-axis Swiss CNC case finishing.
• Verified Reference Mass: 128.3g confirmed on our Monte-Carlo showroom Mettler-Toledo analytical balance.
• Mechanical Calibre: Patek Philippe Cal. 240 LU CL C - 22K Gold Micro-Rotor operating at 28,800 vph (4 Hz) with 72-hour power reserve (+0.4 s/d, 296 deg).
• Sapphire Crystal & QC: Scratch-resistant sapphire crystal with double anti-reflective coating and 30m / 3 ATM water resistance.

Within the same Patek Philippe horological silo, collectors also compare the Patek Philippe Aquanaut Extra-Large Self-Winding 18K Rose Gold Ref. 5167/300R-010 (108.6g) and the Patek Philippe Nautilus Self-Winding Diamond-Set Bezel 18K Rose Gold Geneva Atelier Spec Ref. 5723/112R-001 (186.5g).