Ciso Tool
Ciso Tool
Explore our industrial-grade watch parts, precision-machined crowns, movements, cases, and premium micro-assemblies manufactured under strict ISO quality controls.
Founded in 2006, Dongguan Ciso Tool Co., Ltd. has evolved from an early precision engineering workshop into a modern, integrated manufacturing titan. We specialize in the research, development, and high-volume fabrication of mid-to-high-end watch swatches, micro-components, and comprehensive OEM/ODM horology solutions. Headquartered in China's industrial manufacturing heartland, we serve as a premier strategic partner and exporter to international luxury watch brands, global micro-brand startups, and large-scale wholesalers.
Operating out of a state-of-the-art facility spanning more than 20,000 square meters, our plant houses over 500 skilled professionals. This workforce includes a highly specialized R&D division of 60+ engineers who utilize advanced CAD/CAM modeling, finite element analysis (FEA), and high-precision metallurgical testing. By maintaining strict control over our vertical supply chain—from raw material testing to final product assembly—Ciso guarantees high precision and aesthetic excellence for every horological component we manufacture.
20,000+ sqm manufacturing facility with Swiss-type CNC lathes, multi-station milling centers, and Cleanroom Class 10,000 assembly zones to handle large-scale wholesale watch swatch demands without quality degradation.
Equipped with CAD/CAM systems, medium-wire wire cutting machines, and multi-station automatic drilling, tapping, and milling units capable of holding tolerances down to ±0.005mm.
Our "Quality First, Integrity Supreme" protocol ensures that 100% of watch parts undergo testing: water resistance pressure tests (up to 20 ATM), Swiss-standard dimensional analysis, and salt spray corrosion tests.
In the modern horology sector, sourcing watch components demands high material integrity and mechanical reliability. Global buyers are moving away from cheap alloys toward highly durable, biocompatible, and chemically stable materials. As a leading manufacturer, Dongguan Ciso Tool Co., Ltd. continuously upgrades our metallurgical processing techniques to match luxury standards.
Our raw material procurement is subject to strict spectrometry testing. We use the following materials to meet various budget and quality requirements:
The interface between a watch case, winding stem, screw-down crown, and internal movement gasket requires precision. A discrepancy of 0.01mm can compromise waterproof integrity. Ciso utilizes multi-station Swiss CNC machining to maintain tolerances within ±0.005mm. The diagram below highlights our quality control loop:
| Production Stage | Machinery Utilized | Critical Quality Metrics | Target Tolerances | |
|---|---|---|---|---|
| Raw Material Slicing / Forging | Hydraulic Press & Automatic Band Saws | Alloy composition check, density verification | ±0.1 mm | |
| Primary CNC Profiling | Swiss-Type multi-axis CNC Lathes | Outer/inner diameter profiling, lug spacing | ±0.01 mm | |
| Precision Micro-Drilling & Tapping | Multi-station Precision Drilling/Tapping Machines | Crown tube thread pitch, spring bar holes alignment | ±0.005 mm | |
| Surface Polishing & Finishes | Centrifugal barrel finishers, manual polishing wheels | Surface roughness (Ra), mirror reflection quality | Ra < 0.1 μm | |
| Luminescent Application & Inlay | Automatic micro-dispensers, Cleanroom Class 10,000 | Super-Luminova thickness, ceramic bezel alignment | ±0.02 mm | |
| Waterproof & Pressure Testing | Swiss-made pneumatic and hydrostatic testers | Air leak detection under negative/positive pressure | Up to 20 ATM (200m) |
At Dongguan Ciso Tool Co., Ltd., we combine automated machinery with skilled human oversight. This hybrid model allows us to scale manufacturing capacity while retaining the agility required for bespoke custom watch designs. By using CAM automatic lathes alongside multi-station precision tapping and drilling systems, we streamline raw component machining to shorten production times for large wholesale orders.
Our dedicated assembly lines operate under positive-pressure, temperature-controlled, dust-free cleanrooms. This environment helps prevent particulate contamination on watch hands, dials, and movement gears during assembly. Additionally, we use fiber laser marking machines for precise serial numbering, custom engraving, and logo detailing, supporting brand identification and counterfeit prevention.
B2B procurement professionals face several challenges when importing watch parts, including varying quality batches, extended lead times, and regulatory compliance. At Dongguan Ciso Tool Co., Ltd., we offer tailored programs to help minimize risk, control costs, and maintain supply chain continuity:
By working directly with us, you eliminate middlemen fees. Our vertically integrated facility in Dongguan controls the entire process—from machining raw bar stock to completing final surface treatments like sandblasting, PVD/DLC coating, and mirror polishing. This direct control helps lower costs, speeds up feedback loops, and allows for precise customization based on your design files.
We provide material traceability reports to help clients meet global regulatory standards. For European and American markets, we ensure compliance with:
Precision watch components can be easily damaged by moisture, static, or vibration during transit. We use customized antistatic trays, vacuum-sealed barrier packaging, and desiccants to protect components from oxidation and scratches during air or ocean shipping. Additionally, we offer custom packaging and labeling options to help streamline your warehousing and inventory processes upon arrival.
Answers to common B2B questions regarding MOQs, customization capabilities, tooling costs, and lead times.
High-precision accessories, replacement components, and advanced machinery for watch manufacturers and distributors worldwide.
