Ciso Tool
Sofia, as a burgeoning hub in Eastern Europe, serves as a strategic crossroads for watch manufacturing and horological repair. The integration of high-precision CNC machining and European quality standards makes the local supply chain a vital partner for global brands. Dongguan Ciso Tool Co., Ltd. bridges the gap between high-scale manufacturing and local technical precision, offering robust, 316L stainless steel watch stems designed for longevity.
Founded in 2006, Ciso Tool Co., Ltd. brings nearly two decades of expertise to the watch industry. Our 20,000 sqm facility isn't just a factory; it's an R&D powerhouse where 60+ engineers obsess over micron-level tolerances. For brands seeking reliability, our stems undergo rigorous testing to ensure water resistance and torque integrity, meeting the most demanding specifications of Swiss and Japanese movements.
The global watch market is shifting toward sustainable, high-durability components. Our technical roadmap involves integrating AI-driven defect detection in our production lines. Whether you are in Sofia or abroad, our streamlined logistics and OEM/ODM capabilities ensure that your watch components are produced with high precision, meeting international compliance and durability benchmarks.
We primarily utilize high-grade 316L stainless steel, known for its superior anti-corrosion properties and mechanical strength, perfect for waterproof crowns.
Yes, we specialize in OEM/ODM services, including custom laser engraving and logo machining on watch crowns and stems.