Mini Rubber Washer O-Ring Watch Crown Waterproof Seals Set

Mini Rubber O-Ring Watch Crown Waterproof Seals Set

10-Grid Assorted Storage Box • Precision Watchmaker Repair Kit • Waterproof Gasket Replacement

Restore the water resistance of your timepieces with this Mini Rubber Washer O-Ring Set for Watch Crowns. Packed in a 10-grid organized storage case, these high-grade mini rubber seals are ideal for watch repair technicians, horologists, and DIY watch enthusiasts replacing worn or dry-rotted crown gaskets. Covering 10 distinct precision sizes, this kit ensures a tight waterproof seal to protect delicate watch movements from moisture, dust, and water ingress.
Key Features & Highlights

10-Grid Assorted Organizer Box

Comes neatly organized in a 10-compartment clear storage case with a labeled lid chart for quick size selection.

Precision Crown Water Sealing

Designed specifically for watch crowns to maintain water-resistant integrity and shield internal mechanisms.

Durable Elastic Rubber

Made from premium black rubber material with excellent elasticity and deformation recovery for long-lasting seal performance.

Essential Repair Tool Kit

A must-have accessory kit for watch repair shops, hobbyists, and horology enthusiasts doing routine crown maintenance.

Included 10-Grid O-Ring Size Chart
Grid 1 Grid 2 Grid 3 Grid 4 Grid 5
1.4 x 0.6 x 0.4 mm 1.5 x 0.6 x 0.7 mm 1.6 x 0.6 x 0.5 mm 1.7 x 0.7 x 0.5 mm 1.8 x 0.8 x 0.5 mm
Grid 6 Grid 7 Grid 8 Grid 9 Grid 10
1.9 x 0.8 x 0.7 mm 2.4 x 1.4 x 0.5 mm2.8 x 1.75 x 0.53 mm3.2 x 1.8 x 0.7 mm 3.6 x 1.7 x 0.8 mm
Product Specifications
Product Name:10 Grid Waterproof Watch Crown O-Ring Set
Item Type:Watch Repair Tools & Parts
Material Composition:High-Quality Flexible Rubber
Box Dimensions:8.6 cm x 6.4 cm x 1.6 cm
Total Product Weight:Approx. 30.3 grams
Compartment Count:10 Grid Organized Case
Recommended Use:Watch Crown Waterproof Seal Replacement
Chemical Safety:Free from High-Concerned Chemicals
Installation & Usage Tips
  • Selection: Measure the original crown gasket or stem groove before choosing the matching O-ring size from the lid chart.
  • Application: Lightly coat the rubber O-ring with watchmaker silicone grease before inserting into the crown for optimal waterproofing and smoother stem rotation.
  • Measurement Disclaimer: Please note that dimensions are measured manually, and a minor tolerance error of 1-3mm may occur due to manual assembly.