Gravimetric Mass & Chronometric Assay Bulletin
The Hublot Big Bang Original Chronograph 44mm Cal. HUB4100 Reference 301.SX.1170.RX is a hallmarked 904L Stainless Steel Custom Architecture haute horlogerie timepiece measuring 42.0 mm x 14.5 mm with a verified Mettler-Toledo mass of 120.8g, powered by Hublot Unico Flyback Chronograph Cal. HUB1280 operating at 28,800 vph (+0.6 s/d, 301 deg) with a 72-hour power reserve, double anti-reflective sapphire crystal, and 100m / 10 ATM water resistance.
| I. Official Maison Entity & Reference | Hublot — Big Bang / Square Bang Unico | Ref. 301.SX.1170.RX | SKU: PV-CUST-301.SX.1170.RX-W347 |
|---|---|
| II. Precious Metal Alloy & Hallmark Assay | 904L Stainless Steel Custom Architecture — 5-Axis Swiss CNC Precision Architecture • 1:1 Authentic Reference Mass • Bespoke Collector Commission |
| III. Certified Gravimetric Mass (Mettler-Toledo) | 120.8g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| IV. Bezel Setting & Case Architecture | Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 120.8g 904L Steel Edition • 42.0 mm x 14.5 mm |
| V. Mechanical Manufacture Calibre | Hublot Unico Flyback Chronograph Cal. HUB1280 — Swiss Super Clone Mechanical Calibre Regulated to +0.6 s/d, 301 deg |
| VI. Power Reserve & Oscillation Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| VII. Double AR Sapphire Crystal & Hermeticity | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 10 ATM |
| VIII. Dial Finishing, Bracelet & Hallmarked Clasp | 42.0 mm x 14.5 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |
Curated within our hallmarked solid 18K gold Hublot collection, the Hublot Big Bang Original Chronograph 44mm Cal. HUB4100 Reference 301.SX.1170.RX exemplifies haute horlogerie metallurgy in 904L Stainless Steel Custom Architecture. Milled to exact manufacture geometry (42.0 mm x 14.5 mm), the monobloc middle case, Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal, and Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp achieve a verified analytical mass of 120.8g on our Fischer XRF Au750 and Mettler-Toledo assay bench.
What Are the Horological & Metallurgical Benchmarks of Hublot Big Bang Ref. 301.SX.1170.RX?
The Hublot Big Bang Reference 301.SX.1170.RX is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (42.0 mm x 14.5 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 120.8g, because its Hublot Unico Flyback Chronograph Cal. HUB1280 movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core Horological & Metallurgical Specifications:
- Entity & Reference: Hublot Big Bang Original Chronograph 44mm Cal. HUB4100 — Official Reference 301.SX.1170.RX (SKU: PV-CUST-301.SX.1170.RX-W347).
- Precious Metal Assay: 904L Stainless Steel Custom Architecture verified via non-destructive Fischer X-Ray Fluorescence spectroscopy.
- Gravimetric Parity: 120.8g total mass weighed on a calibrated Mettler-Toledo laboratory scale.
- Calibre & Oscillating System: Hublot Unico Flyback Chronograph Cal. HUB1280 beating at 28,800 vph (4 Hz) with a 72-hour power reserve (+0.6 s/d, 301 deg).
- Crystal & Hermeticity: Scratch-resistant sapphire crystal with double anti-reflective coating and 100m / 10 ATM rating.
Within the Hublot Big Bang horological sub-silo, collectors also compare the Hublot Big Bang Evolution Chronograph 44mm Cal. HUB4200 Ref. 301.QX.1740.RX (120.8g) and the Hublot Big Bang Unico 42mm Full VVS Diamond & Ruby Rehaut Edition Ref. 441.NX.1170.RX (120.3g).
- Parent Brand & Big Bang Silo Hub: Browse All 7 Certified Hublot Solid 18K Gold & Pt950 Watches
- Technical Research Monograph: Swiss St. Bernard Poincon & Au750 Gold Hallmarks Guide (All 5 Journal Monographs)
- Homepage Master Register: Return to 18K SOLID GOLD 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 is the verified authentic gram weight of this Hublot Ref. 301.SX.1170.RX?
At 18K Solid Gold 18K Solid Gold Salon, this Hublot Big Bang Original Chronograph 44mm Cal. HUB4100 Ref. 301.SX.1170.RX weighs 120.8g on our Mettler-Toledo analytical balance, matching the exact factory mass of the authentic 904L Steel Edition reference.
How is the 904L Stainless Steel Custom Architecture purity verified prior to dispatch?
Every timepiece undergoes non-destructive Fischer X-Ray Fluorescence (XRF) spectroscopy confirming elemental bullion composition alongside a personalized 4K scale and hallmark inspection video.
Which movement powers Reference 301.SX.1170.RX and what is its power reserve?
Reference 301.SX.1170.RX is equipped with the Hublot Unico Flyback Chronograph Cal. HUB1280 operating at 28,800 vph (4 Hz) with a 72-hour power reserve, regulated in our Paris and Geneva workshop to +0.6 s/d, 301 deg.
What dial and bezel specifications distinguish Hublot Big Bang Ref. 301.SX.1170.RX?
Reference 301.SX.1170.RX 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 42.0 mm x 14.5 mm 904L Stainless Steel Custom Architecture case weighing 120.8g, verified via Fischer XRF spectroscopy and powered by Hublot Unico Flyback Chronograph Cal. HUB1280.
Hublot Big Bang Original Chronograph 44mm Cal. HUB4100 Reference 301.SX.1170.RX — Salon Edition
Bespoke Atelier Salon Edition • 120.8g Verified Mass • Hublot Unico Flyback Chronograph Cal. HUB1280