18–20mm Silver Polished Stainless Steel Deployment Clasp

Product Overview

This stainless steel deployment clasp is designed for rubber and leather watch straps, offering a clean appearance and smooth locking experience.

Available in 18–20mm sizes with silver polished finish. We support custom logo engraving, structure adjustment, and OEM production based on your drawings or samples.

How Quantity, Precision & Customization Affect Cost

When we discuss pricing with customers, we usually focus on these three points:

Production Volume:
The larger the order, the lower the unit cost. For example, producing 10,000 pcs of stainless steel butterfly clasps can cost 30%–50% more per piece than an order of 100,000 pcs.
Precision Requirement:
If tolerance needs to be ≤ ±0.005mm (high-end watch level), CNC machining time increases by about 50%, tool wear doubles, and total cost rises by 20%–40%.
Customization Level:
Custom logos, special structures, or non-standard sizes usually increase cost by 10%–30% compared to standard models.

Just let us know your target market and quantity, and we’ll help you choose the most cost-effective solution.

Your Custom Watch Clasp Manufacturing Partner

We specialize in OEM & ODM manufacturing of watch deployment clasps. With in-house design capability, we support customers from concept design to mass production.

Whether you need a standard butterfly clasp or a fully customized structure, our engineering team can optimize the design for appearance, durability, and production efficiency.

Hand Mirror Polishing – Traditional High-End Craft

Manual mirror polishing aims to achieve mirror-level smoothness (Ra ≤ 0.01μm), relying heavily on skilled technicians.

Rough polishing to remove CNC marks and burrs
Fine polishing using wool wheels and diamond compound
Mirror polishing with ultra-fine paste (W0.5 or below)
Ultrasonic cleaning to remove residue

Characteristics: craftsmanship-driven, yield rate around 85%–90%, ideal for luxury and small-batch watches.

Mechanical Polishing + PVD – Modern Mass Production

For mid-to-large volume orders, we recommend mechanical polishing combined with PVD coating.

Automated polishing to achieve Ra ≤ 0.05μm
Ultrasonic, vacuum degreasing & plasma cleaning
PVD coatings: TiN, CrN, or DLC (2–5μm thickness)

Characteristics: fully automated process, stable appearance, and 95%+ yield rate, ideal for cost-controlled mass production.