Ciso Tool
Ciso Tool
Engineered to sub-micron tolerances, our primary watch accessories showcase advanced material composition and high-reliability structures for global brands.
Dongguan Ciso Tool Co., Ltd. was founded in 2006 and is a professional manufacturer specializing in the research, development, and production of mid-to-high-end precision watch components and complete watch solutions. Formerly operating under an earlier corporate structure, the company has grown into a modern manufacturing enterprise with strong integrated capabilities across design, engineering, and precision production.
The company operates an independent industrial facility covering over 20,000 square meters and employs more than 500 skilled staff members, including a dedicated R&D team of over 60 professionals. With advanced production equipment, strict quality control systems, and experienced technical personnel, Ciso is committed to delivering high-precision, high-consistency products for global watch brands.
Ciso focuses on the R&D and manufacturing of premium watch accessories, including watch dials, watch cases, watch straps, watch buckles, and precious metal components such as 18K gold watch parts and fine jewelry accessories. In addition, the company provides full ODM and OEM services, supporting complete watch customization from concept design and prototyping to mass production and assembly.
In the global horological supply chain, quality and efficiency are dictated by the underlying manufacturing technology. Dongguan Ciso Tool Co., Ltd. has integrated multi-axis CNC milling, automatic wire-cutting, and computerized surface refinement processes. These systems reduce human error and ensure that high-tolerance components—such as sapphire crystal cases, ceramic bezels, and spring-loaded stainless steel quick-release pins—are manufactured to exact specifications.
By utilizing specialized multi-station processing equipment, the factory shortens lead times while maintaining close mechanical alignment:
Adapting traditional horology to match the material and integration standards required by the smart wearable and hybrid watch industry.
The watch industry is moving beyond standard steel alloys. Advanced components now utilize high-purity Zirconia Ceramic (ZrO2) and synthetic single-crystal sapphire. These materials offer hardness ratings up to 9 on the Mohs scale, providing scratch resistance, thermal insulation, and RF transparency for smart antennas.
Traditional cases must adapt to house complex sensor arrays. Our manufacturing processes support specialized cutouts, sapphire optical windows for photoplethysmography (PPG) sensors, and titanium structural rings designed to minimize signal interference in smartwatches.
Future operations focus on reducing scrap metal when processing high-value alloys. By implementing multi-stage stamping dies and closed-loop coolant systems, we optimize material yields and reduce the carbon footprint of structural elements.
As watch components become more specialized, global brands require more than basic manufacturing. We offer full-service OEM and ODM capabilities, supporting clients from design to distribution:
We convert industrial concepts into detailed 3D CAD/CAM models, analyzing structural stresses, waterproof seal channels, and assembly tolerances before cutting metal.
Our engineers recommend suitable alloys, ceramics, or synthetics based on the product's use case, budget, and performance requirements (such as 65Mn spring steel for movement components or 316L/904L stainless steel for cases).
Completed components undergo rigorous testing, including water resistance trials (up to 20 ATM), salt spray tests, thermal cycling, and dimensional checks using optical measurement tools.
Procurement directors and sourcing executives evaluate watch accessory suppliers based on clear, metric-driven criteria:
Under our guiding principle, “Quality First, Integrity Supreme,” Ciso implements rigorous quality assurance protocols. Every stage of production is structured to meet international standards for durability, precision, and aesthetic finish.
Our operations align with global standards to ensure seamless customs clearance and market entry:
Our entire workflow—from raw material inspection (IQC) to in-process checks (IPQC) and final quality control (FQC)—is fully ISO 9001 certified, ensuring stable manufacturing runs.
All watch straps, metal connectors, and plastic components are tested to confirm they comply with RoHS and REACH regulations, protecting wearer safety.
We provide full customs documentation, certificate of origin paperwork, and trackable shipping services to streamline international delivery.
Our secondary line features specialized smart components, high-durability cases, and precise custom manufacturing tooling.
Frequently asked questions regarding material composition, manufacturing capabilities, quality controls, and business terms.