5-Axis CNC & Horological Architecture
The Custom IWC Schaffhausen IWC Portugieser Chronograph 40.9mm Cal. 79350 Reference IW371482 is a 5-axis Swiss CNC commission machined in 904L Stainless Steel Custom Architecture (41.0 mm x 13.0 mm) weighing 81.8g on our Mettler-Toledo analytical balance, driven by IWC Manufacture Cal. 69355 / Cal. 52010 regulated to +0.8 s/d, 299 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.
| 01 / CNC Blueprint Entity & Reference | IWC Schaffhausen — Portugieser / Pilot / Ingenieur Collection | Ref. IW371482 | SKU: AT-CNC-IW371482-W354 |
|---|---|
| 02 / 5-Axis CNC Metallurgy & Gold Purity | 904L 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) | 81.8g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| 04 / Custom Bezel, Gem-Setting & Case Geometry | Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal • 81.8g 904L Steel Edition • 41.0 mm x 13.0 mm |
| 05 / Regulated Super Clone Movement Calibre | IWC Manufacture Cal. 69355 / Cal. 52010 — Swiss Super Clone Mechanical Calibre Regulated to +0.8 s/d, 299 deg |
| 06 / Barrel Power Reserve & Balance Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| 07 / Optical Sapphire Crystal (Double AR) & Sealing | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 60m / 6 ATM |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 41.0 mm x 13.0 mm • Hand-Finished Sunray Collector Dial with Hand-Finished Luminous Appliques & Hands • Hand-Brushed & Chamfered Integrated Solid Link Bracelet & Deployant Clasp |
Engineered inside our Geneva 5-axis CNC IWC Schaffhausen custom atelier, the Custom IWC Schaffhausen IWC Portugieser Chronograph 40.9mm Cal. 79350 Reference IW371482 is machined from solid 904L Stainless Steel Custom Architecture billets to micron-level tolerances (41.0 mm x 13.0 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 81.8g verified under our Fischer XRF and Mettler-Toledo QC protocol.
What Are the Horological & Metallurgical Benchmarks of IWC Schaffhausen Portugieser Ref. IW371482?
The IWC Schaffhausen Portugieser Reference IW371482 is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (41.0 mm x 13.0 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 81.8g, because the IWC Manufacture Cal. 69355 / Cal. 52010 movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core CNC & Chronometric Specifications:
- Blueprint Reference: Custom IWC Schaffhausen IWC Portugieser Chronograph 40.9mm Cal. 79350 — Official Ref. IW371482 (SKU: AT-CNC-IW371482-W354).
- 5-Axis CNC Metallurgy: 904L Stainless Steel Custom Architecture case (41.0 mm x 13.0 mm) and Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
- Verified Bench Mass: 81.8g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: IWC Manufacture Cal. 69355 / Cal. 52010 operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.8 s/d, 299 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 60m / 6 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the IWC Schaffhausen Portugieser horological sub-silo, collectors also compare the IWC Schaffhausen IWC Portugieser Automatic 7-Days Power Reserve 42.3mm Cal. 51011 Ref. IW500704 (98.1g) and the IWC Schaffhausen IWC Portugieser Chronograph 40.9mm Silver Dial Ref. IW371445 (81.5g).
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- Metallurgical & 4K QC Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
How is the 904L Steel Edition case of this IWC Schaffhausen IW371482 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 81.8g 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 IWC Manufacture Cal. 69355 / Cal. 52010 tested on the atelier workbench?
We record a personalized 4K bench video showing the IWC Manufacture Cal. 69355 / Cal. 52010 (28,800 vph, 72-hour reserve) running at +0.8 s/d, 299 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
What dial and bezel specifications distinguish IWC Schaffhausen Portugieser Ref. IW371482?
Reference IW371482 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 41.0 mm x 13.0 mm 904L Stainless Steel Custom Architecture case weighing 81.8g, verified via Fischer XRF spectroscopy and powered by IWC Manufacture Cal. 69355 / Cal. 52010.
Custom IWC Schaffhausen IWC Portugieser Chronograph 40.9mm Cal. 79350 Ref. IW371482
5-Axis Swiss CNC 904L Stainless Steel Custom Architecture • 81.8g Verified Mass • Regulated IWC Manufacture Cal. 69355 / Cal. 52010