Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification
The Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Reference Q1368430 is a direct Swiss foundry specimen engineered in 904L Stainless Steel Custom Architecture (39.0 mm x 9.3 mm) with a certified Mettler-Toledo mass of 68.5g, Fischer XRF Au750 metallurgical verification, and Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 running at 28,800 vph (+0.6 s/d, 300 deg) with a 72-hour power reserve and 50m / 5 ATM rating.
Catalogued in our direct Swiss foundry Jaeger-LeCoultre assay archive under Specimen Code LAB-CNC-Q1368430-W67, this Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Reference Q1368430 is smelted and CNC-machined in 904L Stainless Steel Custom Architecture (39.0 mm x 9.3 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 68.5g and scanned via non-destructive Fischer XRF spectroscopy.
What Are the Horological & Metallurgical Benchmarks of Jaeger-LeCoultre Master Ultra Thin Ref. Q1368430?
The Jaeger-LeCoultre Master Ultra Thin Reference Q1368430 is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (39.0 mm x 9.3 mm) with Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 68.5g, because its Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Foundry & Laboratory Assay Specifications:
- Foundry Specimen Entity: Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial — Official Ref. Q1368430 (Specimen LAB-CNC-Q1368430-W67).
- XRF Metallurgical Assay: 904L Stainless Steel Custom Architecture certified for elemental composition and hallmark integrity.
- Mettler-Toledo Mass: 68.5g verified gravimetric parity matching the authentic manufacture reference.
- Chronometric Calibre: Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.6 s/d, 300 deg Witschi trace.
- Optical & Pressure Testing: Double anti-reflective sapphire crystal, Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, and 50m / 5 ATM barometric sealing.
Within the Jaeger-LeCoultre Master Ultra Thin horological sub-silo, collectors also compare the Jaeger-LeCoultre Master Ultra Thin Small Seconds 39mm Cal. 896 Ref. Q1358420 (68.6g) and the Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar 39mm Ref. Q1628430 (68.5g).
- Parent Brand & Master Ultra Thin Silo Hub: Browse All 7 Certified Jaeger-LeCoultre Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Fischer XRF Au750 Spectrometry Watch Authentication SOP-750 (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K FACTORY Homepage (Complete 774-Watch Solid 18K Gold & Pt950 Register)
- All-Brands Catalogue: Explore Complete 12-Maison Horological Catalogue (/shop/)
- Metallurgical & Escrow Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
What laboratory instruments certify Reference Q1368430 (Jaeger-LeCoultre)?
Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (68.5g), a Fischer XRF spectrometer (904L Stainless Steel Custom Architecture), and a Witschi Chronoscope (+0.6 s/d, 300 deg).
Does the 68.5g reading match the authentic original Jaeger-LeCoultre Q1368430 weight?
Yes. Our CNC foundry machines the 904L Steel Edition case and bracelet to replicate the exact 68.5g reference mass of the authentic manufacture timepiece.
What are the movement specifications for Reference Q1368430?
Reference Q1368430 is powered by the Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated across six positions to +0.6 s/d, 300 deg.
What dial and bezel specifications distinguish Jaeger-LeCoultre Master Ultra Thin Ref. Q1368430?
Reference Q1368430 combines Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands and Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 39.0 mm x 9.3 mm 904L Stainless Steel Custom Architecture case weighing 68.5g, verified via Fischer XRF spectroscopy and powered by Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899.
Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Ref. Q1368430 — XRF Certified Edition
Fischer XRF Verified 904L Stainless Steel Custom Architecture • Mettler-Toledo 68.5g • Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899
| Assay Specimen ID & Official Reference | Jaeger-LeCoultre — Master Ultra Thin / Rendez-Vous | Ref. Q1368430 | SKU: LAB-CNC-Q1368430-W67 |
|---|---|
| Fischer XRF Elemental Purity & Alloy | 904L Stainless Steel Custom Architecture — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| Mettler-Toledo Gravimetric Mass (g) | 68.5g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| Bezel Tolerance, Gem-Setting & Case Dimension | Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 68.5g 904L Steel Edition • 39.0 mm x 9.3 mm |
| Calibre Reference & Witschi Chronometry | Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 — Swiss Super Clone Mechanical Calibre Regulated to +0.6 s/d, 300 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 • 50m / 5 ATM |
| Dial Metallurgy & Clasp Hallmark Verification | 39.0 mm x 9.3 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Vulcanized Elastomer / Alligator Strap & Folding Clasp |