Ciso Tool
Ciso Tool
Explore our highly engineered watch components, designed to fulfill the structural demands of micro-machining and horological assembly.
Within mechanical horology, timing accuracy is dictated by gear meshes operating at sub-micron scales. The watch minute wheel represents a critical hub in the motion work train of mechanical and high-frequency quartz watch movements. Positioned between the cannon pinion and the hour wheel, its primary mechanical task is the direct gear-reduction conversion required to translate minute rotation into hour rotation, establishing a precise 12:1 gear ratio.
Any minute tooth geometry flaw, circular runout error, or micro-material defect directly degrades movement reliability. Such imperfections cause backlash issues, increased rotational drag, or catastrophic tooth shear. For luxury watch brands, calibres, and industrial motion suppliers, sourcing high-durability watch minute wheels is essential to guarantee chronometric precision, structural integrity, and long operational life.
Modern micro-gearing relies on strict dimensional tolerances and optimized surface morphology to minimize tribological friction.
Founded in 2006, Dongguan Ciso Tool Co., Ltd. has evolved into a premier modern manufacturing enterprise specializing in the research, development, engineering, and precision production of mid-to-high-end watch components and complete horological movement solutions.
Ciso provides full-cycle ODM and OEM manufacturing, supporting B2B custom watch solutions from visual CAD concept design, finite element analysis (FEA) testing, prototyping, to massive high-yield CNC production and sub-assembly configuration.
Guaranteed by our corporate directive "Quality First, Integrity Supreme", we maintain ISO 9001 and high-precision testing workflows to guarantee perfect dimensional consistency on high-precision components, including watch dials, cases, bands, and movement gears.
We utilize and process elite raw materials including 18K solid gold, premium 316L/904L stainless steel, custom titanium alloys, high-elasticity beryllium copper, carbon fiber composites, and optical-grade sapphire crystal structures.
Our production floor features advanced machinery to handle precision micro-cutting, automatic high-speed drilling, multi-station tapping, and complete micro-assembly protocols.
The manufacturing of micro-gears requires solving complex mechanical issues related to structural mechanics, friction, and long-term surface wear. Ciso addresses these challenges through advanced engineering methods.
Backlash is the play caused by clearance between mating gear teeth. Through tooth-profile optimization (using custom epicycloidal curves) and tight center-distance tolerances, our minute wheels ensure fluid, continuous power transmission without jitter or time-display lag.
To reduce friction and wear, Ciso applies advanced surface treatments such as diamond-like carbon (DLC), chemical nickel-phosphorus plating, and flash gilding. These coatings extend service intervals for mechanical movements to over 10 years.
Magnetic fields are a leading cause of mechanical watch inaccuracy. We manufacture non-magnetic minute wheels using specialty copper-beryllium (CuBe) alloys and synthetic high-performance polymers. These components maintain accurate timing in environments with elevated magnetic activity.
The high-end horology sector is undergoing a major structural shift. Traditionally concentrated in Switzerland, watch movement manufacturing has decentralized. Brands now rely on a global network of specialized micro-engineering partners to maintain efficiency and manage costs.
Premium watch movements require high-volume production of gears with precise dimensional accuracy. Standard tooling is often insufficient for these requirements. This has led to a growing demand for B2B component specialists who can deliver custom, high-precision products with short lead times.
Additionally, modern watch movements are shrinking to accommodate ultra-thin, jewelry-style watches. This downsizing requires component features to be reduced by up to 40%. Ciso meets these demanding industry requirements by investing in high-precision machinery, including Swiss-type automatic lathes and precision EDM wire cutters.
Minute wheels and motion gear assemblies serve different functions depending on the watch class and target market. Below are the key design integrations we support:
For chronometer-grade calibres, our minute wheels undergo diamond-tool finishing and strict microscopic inspection. This level of quality ensures the component meets COSC accuracy standards in all testing orientations.
Quartz movements rely on quick step-motor movements. This requires lightweight, high-stiffness components. We manufacture minute wheels with optimized spoke configurations to minimize inertia, which helps reduce battery consumption.
Modern smartwatches often combine analog hands with digital displays. This setup requires durable, wear-resistant gears to handle high-torque motor adjustments. Our hardened copper alloy wheels are built to withstand these dynamic loads.
Use the technical reference data below to determine the ideal material and design criteria for your specific movement design:
| Material Designation | Standard Application | Yield Strength (MPa) | Vickers Hardness (HV) | Key Performance Attribute |
|---|---|---|---|---|
| C3604 Eco-Brass | Standard Quartz / Mechanical Movements | 340 - 450 | 110 - 150 | Excellent machinability and high yield output consistency. |
| C17200 Beryllium Copper | Luxury & High-Stress Calibres | 680 - 950 | 280 - 350 | High wear resistance, non-magnetic properties, and superior fatigue life. |
| SUS316L / 904L Steel | Corrosive / Sport watch movements | 480 - 620 | 180 - 240 | Excellent corrosion resistance and high structural durability. |
| POM (Polyoxymethylene) | Ultra-light quartz movement gear trains | 65 - 80 | 85 (Rockwell R) | Self-lubricating, low rotational inertia, and quiet operation. |
Ciso invests in advanced manufacturing research to keep our B2B customers ahead of changing industry trends. Below are the key focus areas of our technical development roadmap:
For high-end mechanical components, we are adopting LIGA (Lithography, Electroplating, and Molding) technology. This process allows us to manufacture metal parts with unmatched dimensional accuracy and surface finishes, reducing friction to near-zero levels.
Silicon is lightweight, anti-magnetic, and requires no lubrication. We are developing silicon manufacturing processes to produce next-generation wheel assemblies that improve movement efficiency and extend service life.
To scale production while maintaining quality, we use AI-driven optical sorting machines. These systems inspect every wheel in real-time, automatically identifying and removing components with minor tooth geometry or surface flaws.
Ciso is committed to maintaining reliable manufacturing standards and complete supply chain transparency.
Every component batch goes through a multi-stage testing process. This includes hardness testing, salt spray testing for corrosion resistance, and profile measurement using 2.5D optical measuring projectors. These steps ensure every part matches our customers' design specifications.
We ensure our manufacturing processes comply with RoHS and REACH standards. We also use lead-free brass alloys, allowing our B2B customers to confidently sell their finished watches in highly regulated markets like North America and the European Union.
Find technical answers regarding lead times, materials, custom tolerances, and B2B ordering requirements.
Discover our collection of high-durability watch components, designed to meet the strict demands of precision watch repair and movement assembly.
