5-Axis CNC & Horological Architecture
The Custom Omega Seamaster Aqua Terra 150M 41.5mm Cal. 8501 Reference 231.10.42.21.03.001 is a 5-axis Swiss CNC commission machined in 904L Stainless Steel Custom Architecture (41.0 mm x 13.2 mm) weighing 149.6g on our Mettler-Toledo analytical balance, driven by Omega Co-Axial Master Chronometer Cal. 8900 regulated to +0.6 s/d, 302 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.
| 01 / CNC Blueprint Entity & Reference | Omega — Seamaster / De Ville Co-Axial Collection | Ref. 231.10.42.21.03.001 | SKU: AT-CNC-231.10.42.21.03.001-W357 |
|---|---|
| 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) | 149.6g — 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 • 149.6g 904L Steel Edition • 41.0 mm x 13.2 mm |
| 05 / Regulated Super Clone Movement Calibre | Omega Co-Axial Master Chronometer Cal. 8900 — Swiss Super Clone Mechanical Calibre Regulated to +0.6 s/d, 302 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 • 150m / 15 ATM |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 41.0 mm x 13.2 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 Omega custom atelier, the Custom Omega Seamaster Aqua Terra 150M 41.5mm Cal. 8501 Reference 231.10.42.21.03.001 is machined from solid 904L Stainless Steel Custom Architecture billets to micron-level tolerances (41.0 mm x 13.2 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 149.6g verified under our Fischer XRF and Mettler-Toledo QC protocol.
What Are the Horological & Metallurgical Benchmarks of Omega Seamaster Ref. 231.10.42.21.03.001?
The Omega Seamaster Reference 231.10.42.21.03.001 is a precision-engineered luxury timepiece crafted in 904L Stainless Steel Custom Architecture (41.0 mm x 13.2 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 149.6g, because the Omega Co-Axial Master Chronometer Cal. 8900 movement is regulated across six positions to chronometric tolerances with a 72-hour power reserve.
5 Core CNC & Chronometric Specifications:
- Blueprint Reference: Custom Omega Seamaster Aqua Terra 150M 41.5mm Cal. 8501 — Official Ref. 231.10.42.21.03.001 (SKU: AT-CNC-231.10.42.21.03.001-W357).
- 5-Axis CNC Metallurgy: 904L Stainless Steel Custom Architecture case (41.0 mm x 13.2 mm) and Precision Brushed & Polished CNC Edition Bezel with Anti-Reflective Scratch-Resistant Sapphire Crystal with hand-polished chamfers.
- Verified Bench Mass: 149.6g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: Omega Co-Axial Master Chronometer Cal. 8900 operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.6 s/d, 302 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 150m / 15 ATM sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the Omega Seamaster horological sub-silo, collectors also compare the Omega Seamaster Aqua Terra Worldtimer 45.5mm Ref. 215.92.46.22.01.006 (126.4g) and the Omega Heritage Seamaster 300 Big Triangle Military Vintage 41mm Ref. 165.024 (104.9g).
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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 Omega 231.10.42.21.03.001 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 149.6g 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 Omega Co-Axial Master Chronometer Cal. 8900 tested on the atelier workbench?
We record a personalized 4K bench video showing the Omega Co-Axial Master Chronometer Cal. 8900 (28,800 vph, 72-hour reserve) running at +0.6 s/d, 302 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
What dial and bezel specifications distinguish Omega Seamaster Ref. 231.10.42.21.03.001?
Reference 231.10.42.21.03.001 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 13.2 mm 904L Stainless Steel Custom Architecture case weighing 149.6g, verified via Fischer XRF spectroscopy and powered by Omega Co-Axial Master Chronometer Cal. 8900.
Custom Omega Seamaster Aqua Terra 150M 41.5mm Cal. 8501 Ref. 231.10.42.21.03.001
5-Axis Swiss CNC 904L Stainless Steel Custom Architecture • 149.6g Verified Mass • Regulated Omega Co-Axial Master Chronometer Cal. 8900