Ciso Tool
Ciso Tool
Explore our premium selection of replacement watch winding stems engineered for global standard calibers. These micro-components are processed under strict tolerances to serve luxury repair centers and independent watch brands in Israel.
Israel is universally recognized as a powerhouse of high-tech innovation, advanced defense industries, and medical device engineering. Centered around clusters in Tel Aviv, Haifa, and Herzliya, the nation thrives on ultra-precise micro-manufacturing. While Israel may not house mass-production centers for mechanical watch movements, its luxury watch ecosystem is vibrant, consisting of high-end boutique watchmakers, luxury watch service conglomerates, and micro-machining specialists. These entities demand exceptionally high-quality replacement and custom components—specifically watch winding stems.
In high-end horology, the watch winding stem is the primary mechanical interface between the user and the intricate wheel-train of the movement. It undergoes severe torsional, tensile, and shear stress through daily winding, date corrections, and time-setting. For Israeli micro-brands and luxury restoration workshops, sourcing high-precision winding stems that match the strict mechanical requirements of movements like ETA, Miyota, Seiko (NH series), and Patek Philippe is critical. Achieving micro-tolerances down to ±0.005mm ensures that winding gears mesh perfectly without causing premature wear to the movement's mainplate or keyless works.
Independent watch repair studios in Jerusalem and Tel Aviv rely on continuous replacement parts pipelines to service both modern and vintage timepieces under strict certification standards.
Independent Israeli watch designers create custom, low-volume art pieces, requiring specialized winding stems customized in length, diameter, and custom crown-threading.
The intersection of wearable technologies and traditional watch cases in Israel pushes the demand for hybrid crown-and-stem interfaces with smart sensors and waterproof sealings.
Globally, the watchmaking industry is shifting toward diversified supply chains. Historically dependent on Swiss components, major luxury watch exporters and service providers now look toward advanced precision factories in East Asia. Modern CNC machines, multi-station automatic drilling lathes, and strict QA protocols enable Chinese factories to deliver components that rival Swiss-made parts at a fraction of the cost.
For Israeli importers, this represents a significant business opportunity. By partnering with leading manufacturers in Dongguan—China’s micro-machining capital—distributors and horologists can obtain premium stainless steel watch stems (utilizing 316L and 303L alloys) that possess superior wear resistance and corrosion performance. The efficiency gains realized by highly integrated manufacturing complexes allow for rapid prototyping, robust volume scalability, and consistent product uniformity.
Founded in 2006, Dongguan Ciso Tool Co., Ltd. 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.
Our independent industrial facility covers over 20,000 square meters and employs more than 500 skilled staff members, including a dedicated R&D team of over 60 professionals. Armed with advanced production machinery, strict quality control systems, and experienced technical personnel, Ciso is committed to delivering high-precision, high-consistency products for global watch brands, luxury repair centers, and custom exporters in Israel.
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. Guided by the principle of “Quality First, Integrity Supreme,” Ciso implements rigorous quality assurance protocols, ensuring that each product meets international standards for durability, precision, and aesthetic refinement.
Our manufacturing facility employs advanced production techniques, from CAM-driven automatic lathes to multi-station drilling, tapping, and milling stations. Our dedicated assembly and testing sectors ensure that every single batch of watch winding stems undergoes rigorous stress and tolerance inspection.
A winding stem must meet rigorous metallurgical and geometric parameters. Below are the key manufacturing standards executed at our facility to support international watchmakers and Israeli importers:
Most watch stems are manufactured from AISI 316L Stainless Steel or specialized hardening steel alloys. 316L provides exceptional resistance to acid perspiration, high humidity, and marine environments—which is vital for watch wearers in coastal climates like Tel Aviv. For structural core robustness, we employ vacuum heat-treatment processes to achieve a surface hardness of up to 55 HRC (Rockwell Hardness C), preventing deformation or breakage at the winding gear teeth.
The threaded portion of the stem must securely screw into the watch crown. Common threads include standard Tap 10 (0.90mm), Tap 9 (0.80mm), and occasionally Tap 11 (0.70mm). We utilize dedicated precision thread rollers instead of standard cutting dies, resulting in smoother flanks, stronger mechanical threads, and minimized stress concentrations.
The square section of the stem coordinates the sliding pinion (château) to switch between the winding state and the hand-setting state. This section requires sharp, well-defined corners and a flatness tolerance of ±0.005mm. A deviations of even 0.01mm will cause keyless-works jamming or slippage during fast time-setting operations.
Explore our complete catalog of watch winding stems, crowns, and movement components compatible with major Swiss, Japanese, and domestic calibers. Designed to meet the stringent demands of distributors and luxury service workshops in Haifa, Jerusalem, and across Israel.
As a major watch component factory exporting directly to Israel, we address the critical questions asked by procurement departments, independent watchmakers, and industrial watch importers.
For standardized models in stock (e.g., replacement stems for Miyota 9015, NH35, ETA 2824), shipping takes approximately 3 to 7 business days via international air express (DHL, FedEx, or UPS) to Israel (Ben Gurion Airport customs). For customized OEM designs involving custom thread configurations or specific lengths, tool design, fabrication, and volume production require a lead time of 20 to 30 days.
At Dongguan Ciso Tool Co., Ltd., batch quality is monitored at every stage of the CAM and Swiss-type CNC automatic lathing cycles. Our quality assurance laboratory uses profile projectors, digital micrometers, and microscopic hardness testing units. We control outer hub tolerances to within ±0.005mm to avoid friction alignment problems within the watch movement's mainplate hole.
Yes. We offer comprehensive OEM services, including high-precision laser marking or CNC micro-engraving for custom logos on watch crowns. Clients in Israel can choose between polished, sandblasted, or brushed textures on 316L stainless steel, titanium, or 18k gold crowns that match our custom-fitted winding stems.
Absolutely. Beyond the widely used Seiko NH35 and Miyota 9015 movements, we manufacture high-precision aftermarket stems for luxury mechanical calibers like PP324, PP330, Rolex 3235, and ETA Valjoux 7750. These parts are constructed using high-carbon martensitic steel alloys which are hardened and passivated to prevent metal fatigue.
We work with telegraphic transfers (T/T), L/C, and major online payment gateways. For customs clearance, we supply complete commercial documentation, including packing lists, commercial invoices indicating the correct HS Code (9114.9090 - Watch Parts, other), and Certificate of Origin (CO) paperwork to simplify processing at Israeli customs checkpoints.
