Ciso Tool
Ciso Tool
Underpinning international watch brands and horological service centers with medical-grade tooling and micro-tolerances.
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.
Operating an independent industrial facility covering over 20,000 square meters and employing more than 500 skilled staff members (including a dedicated R&D team of over 60 professionals), Ciso combines advanced production equipment, strict quality control systems, and experienced technical personnel to deliver 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.
Unlocking physical assembly precision, zero-scratch case clamping, and high-torque mechanical operations.
Our watch case holders utilize custom-engineered alloy jaws lined with non-marring synthetics (POM or Delrin). This ensures case backs can be tightened to specified torque loads (up to 3.5 Nm) without causing micro-deformation or surface scratches.
Engineered for high-mix, low-volume assembly lines. Our holders feature adjustable guide pins and quick-release mechanical plates to fit watch case diameters from 15mm up to 60mm, accommodating oversized sports watches and delicate ladies' models.
Constructed using T6-grade 6061 aircraft aluminum and high-tensile stainless steel. Our case holders undergo hard anodizing (type III) to ensure chemical resistance against watchmaking solvents, ultrasonic cleaning cycles, and skin oils.
A visual tour of our machinery, quality assurance steps, and sterile assembly areas.
Guided by the principle of "Quality First, Integrity Supreme," Ciso emphasizes excellence in every production process. The company implements rigorous quality assurance protocols, ensuring that each product meets international standards for durability, precision, and aesthetic refinement. Through consistent quality and reliable service, Dongguan Ciso Tool Co., Ltd. has established long-term partnerships with well-known domestic brands and continues to expand its presence in global markets. The company is committed to honest cooperation, mutual growth, and long-term value creation with international watch brands, striving to elevate the artistry and innovation of modern watchmaking.
The core utility of a watch case holder is to securely grip the complex geometry of a watch case during critical mechanical procedures: crystal insertion, bezel placement, case-back tightening, and movement positioning. Standard case designs require fixtures that distribute forces evenly along radial axes. Without uniform stress dispersion, thin-walled watch cases (specifically those made of 316L stainless steel, grade 5 titanium, or 18k gold) can suffer microscopic ovalization. This minor warping, even when measuring under 10 microns, compromises the hermetic seal of the case gasket, leading to failure under water-resistance testing.
Dongguan, located in the heart of China’s Pearl River Delta, is recognized as the world's leading micro-precision manufacturing hub. Factories like Ciso exploit this regional advantage by integrating raw material casting, high-speed multi-axis CNC machining, anodizing treatments, and laser engraving into a single vertical production cycle. This concentrated infrastructure reduces logistics lead times and guarantees material supply chain integrity. For global watch brands, this translates to stable component tolerances, customized alloy formulations, and lower unit costs compared to European counterparts.
Modern watchmaking is witnessing a convergence of robotic assembly and highly specialized manual craft. Watch case holder designs have evolved to match these requirements:
Ciso Tool Co., Ltd. designs customized solutions for two distinct B2B markets:
Our operational infrastructure and precision milestones in figures.
Technical and procurement inquiries addressed by our engineering staff.
