Ciso Tool
Ciso Tool
Direct access to our highly sought-after sapphire glass blanks and high-frequency quartz resonators designed for luxury watches and smart devices.
Ireland’s industrial landscape features a powerful dynamic between historic horological craftsmanship and state-of-the-art technology. While cities like Dublin and Cork support boutique watchmakers and restoration studios keeping classic watchmaking alive, Ireland has also evolved into a global powerhouse for high-tech medical devices, aerospace engineering, and marine electronics.
These dual strengths require watch crystals that meet demanding, diverse specifications. Luxury Irish microbrands want highly polished, scratch-resistant synthetic sapphire crystals that protect mechanical movements. Simultaneously, Ireland's advanced instrumentation companies require industrial-grade sapphire windows and highly stable 32.768 kHz tuning fork crystals to maintain performance in extreme conditions.
As a leading partner for Irish businesses, Dongguan Ciso Tool Co., Ltd. supplies premium raw materials, components, and custom engineering support to bridge the gap between traditional watchmaking aesthetics and high-performance electronics.
Understanding the performance characteristics of synthetic sapphire (monocrystalline Al₂O₃) and quartz resonators is vital when sourcing components for high-reliability systems.
Produced using Verneuil and Kyropoulos crystal growth methods, our watch glass is made of pure monocrystalline Al₂O₃. It features exceptional optical transmission (from UV to near-infrared light) and is highly scratch resistant, ranking 9 on the Mohs scale—second only to diamond.
To improve readability in high-glare environments, we apply advanced anti-reflective (AR) coatings. Using Physical Vapor Deposition (PVD), we coat the sapphire with multiple layers of metal oxides, reducing light reflection by up to 99% and raising transmittance to 98.5%.
For electronic timepieces and IoT sensor networks, our 32.768 kHz tuning fork quartz resonators offer exceptional frequency stability. Designed with small form factors (SMD 1.6*1.0mm), they have a low equivalent series resistance (ESR) and operate reliably from -40°C to +85°C.
We supply more than individual parts; we offer integrated component solutions to simplify your development, assembly, and testing processes.
Irish watchmaking microbrands require high-quality components and flexible production runs. We support these brands with custom-machined watch crystals, custom sapphire cases, and structural rings. Our services let boutique designers create complex shapes, such as high-dome profiles and custom bevels, without facing prohibitive tooling costs.
Ireland's marine research and industrial instrumentation sectors need optical windows that can withstand high pressure and harsh environments. Our flat sapphire windows protect sensitive electronics in ocean sensors and industrial flow meters, offering reliable resistance to scratches, saltwater corrosion, and high pressures.
Exporting precision technical components to the Republic of Ireland requires compliance with strict European regulatory frameworks. Dongguan Ciso Tool Co., Ltd. ensures that all exported watch crystals, quartz components, and mechanical watch parts meet European standards, facilitating smooth customs clearance at Dublin Port and Shannon Airport.
We partner with leading global freight forwarders to offer reliable DDP (Delivered Duty Paid) shipping to all Irish industrial hubs, including Dublin, Cork, Galway, Limerick, and Waterford.
"Our logistics channels avoid delay risks at EU entry points. We manage all import documentation, customs duty filing, and VAT registration, delivering orders directly to your facility."
Our advanced manufacturing facilities in Guangdong combine automated precision machining with strict quality control to deliver high quality and consistent production.
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.
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.
Get answers to common technical, logistics, and design questions from procurement managers in Ireland and worldwide.
Synthetic sapphire has a Mohs hardness of 9, making it highly scratch resistant. It can only be scratched by diamonds or other sapphire surfaces. Mineral glass has a hardness rating of only 5 to 6, which makes it much more vulnerable to scratches and scuffs over time.
We test our raw materials regularly to ensure compliance with REACH and RoHS standards. All materials are certified lead-free and nickel-free, making them safe for consumer jewelry and smartwatches sold in the EU.
Standard tooling and sample production take 10 to 15 days. Mass production is usually completed in 25 to 35 days, depending on geometry complexity. We offer air freight options that deliver to Ireland in 5 to 7 business days.
Yes. We supply 32.768 kHz tuning fork quartz resonators in ultra-thin SMD packages (down to 1.6*1.0mm). These resonators are optimized for low Equivalent Series Resistance (ESR) to prolong battery life in smartwatches and fitness trackers.
Browse our full selection of products, including jewelry stones, industrial optical sapphire windows, and micro-resonators.
Partner with Dongguan Ciso Tool Co., Ltd. for reliable supply, high-precision engineering, and certified quality standard compliance.