18K CUSTOM
01 Workbench / Jaeger-LeCoultre / Blueprint Q1368430
VERIFIED MASS: 68.3g • 904L Stainless Steel Custom Architecture
Custom Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Authentic OEM Dial Ref. Q1368430
01 • Front Dial Portrait (1 / 6)
TECHNICAL SPECIFICATION SHEET

5-Axis CNC & Horological Architecture

The Custom Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Authentic OEM Dial Reference Q1368430 is a 5-axis Swiss CNC commission machined in 904L Stainless Steel Custom Architecture (39.0 mm x 9.3 mm) weighing 68.3g on our Mettler-Toledo analytical balance, driven by Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 regulated to +0.8 s/d, 303 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.

01 / CNC Blueprint Entity & ReferenceJaeger-LeCoultre — Master Ultra Thin / Rendez-Vous | Ref. Q1368430 | SKU: AT-CNC-Q1368430-W349
02 / 5-Axis CNC Metallurgy & Gold Purity904L Stainless Steel Custom Architecture — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission
03 / Analytical Bench Weight (1:1 Reference Mass)68.3g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale
04 / Custom Bezel, Gem-Setting & Case GeometryPrecision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 68.3g 904L Steel Edition • 39.0 mm x 9.3 mm
05 / Regulated Super Clone Movement CalibreJaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 — Swiss Super Clone Mechanical Calibre Regulated to +0.8 s/d, 303 deg
06 / Barrel Power Reserve & Balance Frequency72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel
07 / Optical Sapphire Crystal (Double AR) & SealingScratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 50m / 5 ATM
08 / Bespoke Dial & Integrated Bracelet Spec39.0 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

Engineered inside our Geneva 5-axis CNC Jaeger-LeCoultre custom atelier, the Custom Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Authentic OEM Dial Reference Q1368430 is machined from solid 904L Stainless Steel Custom Architecture billets to micron-level tolerances (39.0 mm x 9.3 mm). Every bevel, lug chamfer, and Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands is hand-finished on our watchmaker bench, yielding a certified reference weight of 68.3g verified under our Fischer XRF and Mettler-Toledo QC protocol.

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 68.3g, because the Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.

5 Core CNC & Chronometric Specifications:

  • Blueprint Reference: Custom Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Authentic OEM Dial — Official Ref. Q1368430 (SKU: AT-CNC-Q1368430-W349).
  • 5-Axis CNC Metallurgy: 904L Stainless Steel Custom Architecture case (39.0 mm x 9.3 mm) and Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
  • Verified Bench Mass: 68.3g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
  • Super Clone Calibre: Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.8 s/d, 303 deg accuracy.
  • Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 50m / 5 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).

Within the Jaeger-LeCoultre Master Ultra Thin horological sub-silo, collectors also compare the Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar 39mm Ref. Q1628430 (68.5g) and the Jaeger-LeCoultre Master Ultra Thin Moonphase 39mm Free-Sprung Cal. 925 Ref. Q1368430 (68.5g).

REFERENCE-SPECIFIC COLLECTOR Q&A
How is the 904L Steel Edition case of this Jaeger-LeCoultre Q1368430 machined?

Our Geneva CNC specialists mill the monobloc middle case, bezel, and bracelet geometry on 5-axis Swiss machining centers in 904L Stainless Steel Custom Architecture to achieve the authentic 68.3g 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 Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 tested on the atelier workbench?

We record a personalized 4K bench video showing the Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899 (28,800 vph, 72-hour reserve) running at +0.8 s/d, 303 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.

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 68.3g, verified via Fischer XRF spectroscopy and powered by Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899.

COMMISSION CONFIGURATOR

Custom Jaeger-LeCoultre Master Ultra Thin Moon 39mm Silver Sunray Dial Authentic OEM Dial Ref. Q1368430

5-Axis Swiss CNC 904L Stainless Steel Custom Architecture • 68.3g Verified Mass • Regulated Jaeger-LeCoultre Manufacture Cal. 925 / Cal. 899

STEP 01 / SETTLEMENT CURRENCY
$4,080 USDT
Secondary Market Estimate: $22,500
LIVE SWISS ASSAY TELEMETRY • BENCH #04 4K QC VIDEO READY
METTLER-TOLEDO
68.3g
1:1 Exact Mass
FISCHER XRF
Ti5 / CNC
5-Axis Swiss Grade
WITSCHI X1
+0.4 s/d
296° • 0.0 ms
Includes personalized 4K scale & XRF video on WhatsApp before dispatch ▶ Sample QC
Request 4K Bench Video
Jaeger-LeCoultre Ref. Q1368430 • 68.3g
$4,080 USDT
● Added to Private Selection Portfolio
Private Client Concierge Desk

Allocation Portfolio (0)

Pre-Shipment 4K Scale & Timing Video Included Insured Vault Delivery
Verified Reference Mass 0.0g Verified
Total Private Allocation $0
Includes Personalized 4K Mettler-Toledo Scale & Witschi Timegrapher Dossier
All removed bracelet links accompany your timepiece inside the presentation box • Insured Brink's / DHL Express Priority
PRIVATE CLIENT DESK
Geneva • Monte-Carlo • Place Vendome

Private Allocation & 4K QC Dossier

1. Select Preferred Settlement Arrangement:
Allocation Dossier Reference
ALLOC-2026-884920
Total Allocation Value
$26,900 USD
Pre-Shipment 4K Laboratory Verification Protocol: Before any funds are finalized or your timepiece is dispatched, our Senior Watchmaker records a personalized 4K video of your exact serial number on a calibrated Mettler-Toledo gram scale and Witschi Chronoscope timegrapher.
GRAVIMETRIC & HOROLOGICAL SPECIFICATION MATRIX

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