Ciso Tool
Ciso Tool
Explore our extensive range of high-precision watch components engineered to meet international horological manufacturing and assembly standards.
The structural component driving precision, gear reduction, and synchronized time display.
The watch hour wheel is the cornerstone of a movement's motion works. It is positioned concentric to the cannon pinion and the minute wheel, functioning as the final step down in gear transmission. Specifically, the hour wheel translates the rapid rotation of the minute hand mechanism into the precise, slow 12-hour or 24-hour cycle of the hour hand. Without absolute precision in the tooth profiles (mostly cycloidal geometry), backlash can develop, leading to inaccurate hand alignment and movement lag.
Hour wheels must endure decades of continuous sliding friction against other gears. Standard material selection includes lead-free brass (e.g., C3604), hard steel (e.g., carbon steel 1095), beryllium copper (for high elasticity and wear resistance), or even customized precious metals. Utilizing advanced Sapphire-hardened interfaces, modern premium designs minimize frictional power losses, maintaining high efficiency in automatic watch caliber assemblies.
A pioneer in precision engineering and high-end horological component manufacturing since 2006.
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.
The company operates an independent industrial facility covering over 20,000 square meters and employs more than 500 skilled staff members, including a dedicated R&D team of over 60 professionals. With advanced production equipment, strict quality control systems, and experienced technical personnel, Ciso is committed to delivering 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.
Assembling - Line A
Assembling - Line B
Precision Machining
Dedicated Assembling
Quality testing & Validation
Multi-station Precision Milling Machine
Multi-station Precision Drilling Machine
Multi-station Precision Tapping Machine
Medium Wire Precision Wire Cutting Machine
CAM Automatic Lathe
Standard configurations and customizable ranges for professional caliber projects.
Precision is not a relative term in watchmaking; it is an absolute quantity. Below is the specification framework that our technical department applies to our high-precision watch hour wheels. Every parameter, from concentricity to surface roughness, is verified on multi-station inspection machines.
| Parameter / Dimension | Standard Tolerances | Custom OEM Capabilities | Typical Materials Applied |
|---|---|---|---|
| Outer Diameter (OD) | ± 0.005 mm | Down to ± 0.002 mm | C3604 Lead-Free Brass, SUS316L |
| Internal Bore Diameter | + 0.003 / -0 mm | + 0.001 / -0 mm | German Silver, Hardened Steel |
| Concentricity / Runout | ≤ 0.008 mm | ≤ 0.003 mm | Beryllium Copper (CuBe) |
| Tooth Geometry Profile | Standard Cycloidal | Optimized Involute & Epicycloidal | Polyoxymethylene (POM) for Smart Watches |
| Vickers Hardness (HV) | HV 180 - 240 | Up to HV 400 (Through hardening) | Quenched Hardened Carbon Steel |
| Surface Finishing (Ra) | Ra 0.4 μm | Super-polished Ra 0.1 μm | PVD Electroplated Gold, Rhodium, Nickel |
LIGA process, Silicon technology, and antimagnetic design integration.
Silicon is revolutionizing the escapement mechanism and extending its influence to the motion works. Silicon hour wheels require zero lubrication, offer zero magnetic susceptibility, and significantly reduce kinetic mass. Our engineering team is currently collaborating with research laboratories to develop DRIE (Deep Reactive Ion Etching) silicon gears, compatible with high-end mechanical movements.
For complicated movements (chronographs, perpetual calendars), standard gear-cutting techniques hit physical limits. Using LIGA (Lithography, Electroplating, and Molding), we can manufacture multi-layered micro-gears with atomic-scale edge precision, preventing gear slip and ensuring consistent transmission efficiency even under ultra-low torque.
Modern consumers are constantly surrounded by magnetic fields from consumer electronics. Ciso is researching the application of Nickel-Phosphorus (Ni-P) chemical deposits and Diamond-Like Carbon (DLC) coatings to traditional brass hour wheels to provide magnetic shielding and extend component life cycles by up to 300%.
From Swiss luxury caliber upgrades to Silicon Valley's hybrid smartwatches.
Silicon Valley hardware developers require hybrid movements where micro-stepper motors drive mechanical hour and minute wheels. Our lightweight, low-inertia POM and ultra-thin brass hour wheels are specifically engineered to interface with electronic modules, minimizing battery draw and extending active smart device runtimes.
We supply Swiss watchmaking hubs (Bienne, Le Locle) with premium, Swiss-caliber-matching hour wheels (e.g., ETA 7750, 2824-2 clones). Using chamfered, circular-grained, and gold-plated surfaces, our parts meet the rigorous aesthetic and functional criteria of high-end chronometers and mechanical complication movements.
Mechanical altimeters, pressure gauges, and flight timers require extreme mechanical reliability under severe vibrations. Ciso's hardened, corrosion-resistant hour wheels provide consistent, non-slipping performance in flight and marine navigation interfaces across the Asia-Pacific region.
Leveraging the Dongguan precision cluster to drive efficiency, agility, and quality consistency.
Located in the heart of Dongguan’s advanced manufacturing zone, Dongguan Ciso Tool Co., Ltd. benefits from a highly integrated local network. Raw materials (such as imported precision copper, stainless steel, and tooling alloys) are sourced within hours. Specialized heat treatment and anodizing sub-contractors operate nearby, reducing logistical delays and allowing us to complete mass production cycles rapidly.
This proximity ensures that lead times are up to 40% shorter than our European competitors, while retaining the ability to modify parameters on the fly during the development stage.
By producing millions of micro-components monthly across our 20,000 sqm facility, we maximize capital equipment utilization. Multi-station precision drilling, tapping, and CAM automatic lathe processes operate continuously, lowering unit manufacturing costs. We pass these cost benefits on to our customers, ensuring premium quality at competitive rates.
Furthermore, our dedicated team of 60 R&D professionals continuously refines tool paths, minimizing waste and maintaining a defective rate of under 100 PPM (Parts Per Million).
Our manufacturing process conforms strictly to international watchmaking standards.
Every single batch of custom watch hour wheels undergoes non-contact optical inspection. Using high-resolution CCD visual measuring devices, we map the exact tooth profile and compare it directly to the customer's CAD models down to 1-micron sensitivity, ensuring flawless concentricity.
Our operations align with ISO 9001:2015 quality management guidelines. Additionally, all raw materials comply with EU RoHS, REACH, and Conflict Minerals regulations, satisfying the supply chain transparency requirements of public and luxury corporate entities.
Hour wheels must endure continuous use. Our testing facility subjects gear sets to accelerated lifetime simulations, equivalent to 20 years of continuous motion, verifying that teeth do not deform under friction load.
Answers to common technical, material, and procurement inquiries.
For custom OEM dimensions and teeth profiles, our MOQ typically starts at 2,000 pieces per batch. This permits efficient CAM lathe setup and ensures unit cost stability. For prototyping and sample validation runs, we support smaller test batches of 50 to 200 pieces.
Yes. We produce hour wheels that are fully compatible with standard movements such as the ETA 2824-2, ETA 7750, and Japanese movements like the Miyota 9015 or Seiko NH35. These components match the precise gear module, thickness, and friction-fit bore specifications of the original movements.
We provide a range of surface treatments including electrolytic nickel plating, rhodium plating, and Physical Vapor Deposition (PVD) gold or rose gold plating. For functional components, we also offer anti-friction coatings that reduce friction and extend gear life.
We employ high-precision CAM automatic lathes and multi-station Swiss-type CNC machines. Additionally, we run continuous in-line SPC (Statistical Process Control) monitoring. Our operators verify critical dimensions at regular intervals using laser micrometers to identify and correct deviations immediately.
Yes, all raw materials, including gold, nickel, steel, and copper alloys, are certified and fully compliant with RoHS and REACH standards. We work closely with our material suppliers to provide documented trace reports, satisfying compliance audits for European and American brands.
Explore further watch components, spring bars, bezels, and production machinery in our specialized product line.
