18K FACTORY
SWISS MANUFACTURE & GRAVIMETRIC ASSAY ARCHIVE • GENEVA FISCHER XRF Au750 (75.0%) AU / Pt950 PT • METTLER-TOLEDO SCALE VERIFIED PRIVATE CLIENT CONCIERGE • INSURED VAULT DISPATCH
18K FACTORY GENEVA
MANUFACTURE & XRF ASSAY ARCHIVE
Assay Archive / Richard Mille / Certificate XRF-750-688 (Ref. RM 61-01)
STATUS: PASSED • VERIFIED MASS 55.3g
Richard Mille RM 61-01 Yohan Blake Asymmetric Master Watchmaker Spec — XRF Certified Edition
01 • Front Dial Portrait (1 / 7)
MANUFACTURE & GRAVIMETRIC ARCHIVE DOSSIER

Fischer XRF Au750 (75.0%) & Mettler-Toledo Gravimetric Verification

The Richard Mille RM 61-01 Yohan Blake Asymmetric Master Watchmaker Spec Reference RM 61-01 is a direct Swiss foundry specimen engineered in Carbon TPT & Grade 5 Titanium (42.7 mm x 50.23 mm x 15.84 mm) with a certified Mettler-Toledo mass of 55.3g, Fischer XRF Au750 metallurgical verification, and Richard Mille Cal. RMUL2 Free-Sprung Skeleton running at 28,800 vph (+0.7 s/d, 300 deg) with a 72-hour power reserve and 50m / 5 ATM - Dual Nitrile O-Ring Seals rating.

Catalogued in our direct Swiss foundry Richard Mille assay archive under Specimen Code LAB-CNC-RM 61-01-W688, this Richard Mille RM 61-01 Yohan Blake Asymmetric Master Watchmaker Spec Reference RM 61-01 is smelted and CNC-machined in Carbon TPT & Grade 5 Titanium (42.7 mm x 50.23 mm x 15.84 mm). Prior to archival release, the completed assembly is weighed on a calibrated Mettler-Toledo balance at 55.3g and scanned via non-destructive Fischer XRF spectroscopy.

What Are the Horological & Metallurgical Benchmarks of Richard Mille RM 61 Ref. RM 61-01?

The Richard Mille RM 61 Reference RM 61-01 is a precision-engineered luxury timepiece crafted in Carbon TPT & Grade 5 Titanium (42.7 mm x 50.23 mm x 15.84 mm) with Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands, Precision Brushed & Polished CNC Titanium Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and a verified Mettler-Toledo mass of 55.3g, because its Richard Mille Cal. RMUL2 Free-Sprung Skeleton movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.

5 Core Foundry & Laboratory Assay Specifications:

  • Foundry Specimen Entity: Richard Mille RM 61-01 Yohan Blake Asymmetric Master Watchmaker Spec — Official Ref. RM 61-01 (Specimen LAB-CNC-RM 61-01-W688).
  • XRF Metallurgical Assay: Carbon TPT & Grade 5 Titanium certified for elemental composition and hallmark integrity.
  • Mettler-Toledo Mass: 55.3g verified gravimetric parity matching the authentic manufacture reference.
  • Chronometric Calibre: Richard Mille Cal. RMUL2 Free-Sprung Skeleton beating at 28,800 vph (4 Hz) with 72-hour reserve and +0.7 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 - Dual Nitrile O-Ring Seals barometric sealing.

Within the Richard Mille RM 61 horological sub-silo, collectors also compare the Richard Mille RM 61-01 Yohan Blake Asymmetric 18K Rose Gold Ref. RM 61-01 (98.3g) and the Richard Mille RM 61-01 Yohan Blake Asymmetric Sapphire Caseback Spec Ref. RM 61-01 (55.4g).

REFERENCE-SPECIFIC COLLECTOR Q&A
What laboratory instruments certify Reference RM 61-01 (Richard Mille)?

Every 18K Factory specimen is verified on three calibrated instruments on 4K video: a Mettler-Toledo analytical balance (55.3g), a Fischer XRF spectrometer (Carbon TPT & Grade 5 Titanium), and a Witschi Chronoscope (+0.7 s/d, 300 deg).

Does the 55.3g reading match the authentic original Richard Mille RM 61-01 weight?

Yes. Our CNC foundry machines the Carbon TPT case and bracelet to replicate the exact 55.3g reference mass of the authentic manufacture timepiece.

What are the movement specifications for Reference RM 61-01?

Reference RM 61-01 is powered by the Richard Mille Cal. RMUL2 Free-Sprung Skeleton operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated across six positions to +0.7 s/d, 300 deg.

What dial and bezel specifications distinguish Richard Mille RM 61 Ref. RM 61-01?

Reference RM 61-01 combines Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands and Precision Brushed & Polished CNC Titanium Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal within a 42.7 mm x 50.23 mm x 15.84 mm Carbon TPT & Grade 5 Titanium case weighing 55.3g, verified via Fischer XRF spectroscopy and powered by Richard Mille Cal. RMUL2 Free-Sprung Skeleton.

Richard Mille • REF. RM 61-01

Richard Mille RM 61-01 Yohan Blake Asymmetric Master Watchmaker Spec — XRF Certified Edition

Fischer XRF Verified Carbon TPT & Grade 5 Titanium • Mettler-Toledo 55.3g • Richard Mille Cal. RMUL2 Free-Sprung Skeleton

MANUFACTURE DIRECT ALLOCATION
$4,040 USDT
Retail Market Estimate: $275,000
LIVE SWISS ASSAY TELEMETRY • BENCH #04 4K QC VIDEO READY
METTLER-TOLEDO
55.3g
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 Lab Video
Assay Specimen ID & Official ReferenceRichard Mille — RM 61-01 Yohan Blake Asymmetric | Ref. RM 61-01 | SKU: LAB-CNC-RM 61-01-W688
Fischer XRF Elemental Purity & AlloyCarbon TPT & Grade 5 Titanium — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission
Mettler-Toledo Gravimetric Mass (g)55.3g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale
Bezel Tolerance, Gem-Setting & Case DimensionPrecision Brushed & Polished CNC Titanium Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 55.3g Carbon TPT • 42.7 mm x 50.23 mm x 15.84 mm
Calibre Reference & Witschi ChronometryRichard Mille Cal. RMUL2 Free-Sprung Skeleton — Swiss Super Clone Mechanical Calibre Regulated to +0.7 s/d, 300 deg
Isochronism Frequency & Autonomous Power Reserve72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel
Double AR Sapphire Crystal & Barometric RatingScratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 50m / 5 ATM - Dual Nitrile O-Ring Seals
Dial Metallurgy & Clasp Hallmark Verification42.7 mm x 50.23 mm x 15.84 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Vulcanized Elastomer / Alligator Strap & Folding Clasp
Richard Mille Ref. RM 61-01 • 55.3g
$4,040 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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