Ciso Tool
Ciso Tool
Discover our advanced structural elements, custom cases, dynamic bezels, and essential repair equipment developed for leading global luxury watch brands and independent horologists.
Founded in 2006, Dongguan Ciso Tool Co., Ltd. has established itself as an authoritative manufacturer and global exporter specializing in the research, design, engineering, and mass production of mid-to-high-end watch movements, mechanical watch mechanisms, and precision case components.
Our transition from a specialized tooling facility to an integrated manufacturing conglomerate allows us to maintain microscopic tolerance control across all stages of production. Underpinned by rigorous adherence to European compliance mandates and domestic production excellence, Ciso serves as a strategic OEM/ODM partner to renowned horological houses across Europe, the Americas, and Asia.
To support the global supply chain requirement for structural continuity, high reliability, and prompt delivery, Ciso has transitioned its Dongguan facility into a Smart Factory 4.0. By pairing automated CNC milling, micro-drilling, and wire-cutting machinery with a multi-layered quality control framework, we eliminate structural discrepancies and guarantee absolute consistency in watch movement batches.
Our internal capabilities extend to manufacturing premium structural accessories, including decorated watch dials, high-density stainless steel and titanium cases, premium silicone straps, solid metal buckles, and complex custom bezels. Through vertical integration, we control the mechanical properties and surface finishes from raw steel billet or carbon fibers to final mechanical movement assembly, minimizing procurement lead times by up to 35% compared to fragmented supply networks.
The evolution of watchmaking requires high resistance to magnetisation, thermal stability, and mechanical efficiency. Ciso’s structural engineering team works alongside material labs to design next-generation movements. Below is the design trajectory of our mechanical movements and materials roadmap for the next decade:
Transitioning to silicon (Si) hairsprings and escapement wheels to eliminate magnetic vulnerability up to 15,000 Gauss, maintaining rate stability without thick shielding.
Developing optimized barrel architectures and high-modulus alloy mainsprings to extend power reserves to 80 hours within standard 11.5 ligne profiles.
Integrating micro-electric energy harvesters with traditional mechanical balance wheels, creating high-torque hybrid calibers for modern smart-mechanical watches.
Our manufacturing roadmap prioritizes Green Horology, using recycled 316L/904L steel and lead-free brass alloys, in compliance with updating RoHS and REACH directives, ensuring European market accessibility.
Large-scale global buyers face supply bottlenecks, tariff constraints, and compliance audits when importing movements and watch cases. Ciso addresses these risks through a structured B2B support network that goes beyond standard parts supply:
Every batch of stainless steel, titanium, or ceramic undergoes spectrographic analysis. We supply detailed material data sheets confirming structural composition, hardness ratings (Vickers scale), and corrosion resistance, essential for premium diving and outdoor timepieces.
We design watch crowns, stems, and casebacks to match the specified movement clearance (such as NH35A, Caliber 9015, or ETA equivalents). This prevents common assembly issues, such as stem binding, crystal clearance failures, and water-resistance seal degradation.
As a verified exporter, Ciso certifies that all mechanical and electronic movement modules conform to the CE mark guidelines. This ensures compliance with standard electromagnetic compatibility (EMC) tests for quartz/smart calibers and hazardous materials restrictions across the European Union.
We offer high-resolution fiber laser engraving for weight rotors, backplates, and inner casing rings. Brand owners can specify tailored finishes, including Geneva stripes (Côtes de Genève), perlage, and customized PVD/DLC coatings, directly at the factory stage.
Operating as an international partner requires clear regulatory alignment. Dongguan Ciso Tool Co., Ltd. handles customs, shipping documents, and localized quality standards to simplify importing for international brands.
Our logistics team works with global freight forwarders to provide DDP (Delivered Duty Paid), FOB (Free on Board), and CIF (Cost, Insurance, and Freight) terms. Each shipment includes certified quality inspection reports, pressure test certificates for water-resistant structures, and CE compliance documentation, reducing customs clearance times at major international ports.
Explore our collection of hands, stems, crowns, and advanced laser marking machinery designed for watch repair shops, production facilities, and custom modifications.
Review answers to technical, regulatory, and logistics questions from watch brand managers, production engineers, and supply chain directors.
A: CE certification confirms that imported watch mechanisms comply with EU directives for consumer safety, environmental protection, and electromagnetic shielding. For quartz and smart calibers, it validates conformity with the EMC Directive (2014/30/EU). For mechanical movements, it certifies compliance with chemical directives (RoHS/REACH), ensuring materials like lead, cadmium, and nickel are within legal limits. Operating without this certification can result in customs seizures at European borders.
A: Ciso operates under the ISO 9001:2015 Quality Management System. Our QC team monitors each stage of production using automated optical inspection (AOI), digital coordinate measuring machines (CMM) for micrometer accuracy, and high-pressure chambers for water-resistance testing (up to 50 ATM). We verify the torque and balance of winding stems, gear train alignment, and escapement precision before packaging.
A: Yes, we provide full ODM/OEM customization for watch movements and structural parts. We can engrave weights or rotors, modify bridge layouts, apply decorative finishes (such as perlage, blue screws, or custom PVD coatings), and adjust dimensional tolerances to fit custom watch cases. Our engineering team can develop custom components from 2D blueprints or 3D CAD files.
A: We require material certification from our raw metal and alloy suppliers. Our alloys, including 316L, 904L, brass, and grade 5 titanium, are tested using X-ray fluorescence (XRF) to ensure compliance with RoHS 2.0 and REACH Annex XVII. These reports are available to clients during shipping for import verification.
A: Standard component batches, such as crowns, stems, and spring bars, ship within 15 to 25 days depending on stock. Custom OEM projects requiring tooling, stamping modifications, or custom engraving typically take 45 to 60 days. We provide progressive updates and structural samples before initiating mass production.