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This Watch Gasket Waterproof O-Ring Set includes 50 pieces of high-quality rubber O-rings with a thickness of 0.6 mm, available in diameters from 12mm to 30mm. These gaskets are designed to provide reliable waterproof sealing for watch case backs and crowns, ensuring protection against moisture and dust ingress during daily wear.
50-piece set – ample supply for multiple repairs
19 diameter sizes – covers 12mm to 30mm range
Standard 0.6mm thickness – fits narrow-groove case backs
Durable rubber material – flexible, corrosion-resistant, and long-lasting
Reliable waterproof sealing – protects movement from moisture and dust
Material: Rubber / Silicone
Thickness: 0.6 mm
Diameter Sizes: 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 mm
Quantity: 50 pieces (approximately 2-3 per size)
Type: Case back O-ring / Gasket
Condition: Brand new, aftermarket
Replacement for worn, cracked, or degraded case back gaskets
Battery replacement – restoring water resistance after battery change
Routine maintenance – replacing gaskets during full service
Suitable for watchmakers, repair technicians, and DIY enthusiasts
1. Are these original brand gaskets?
No, these are generic aftermarket gaskets, not from a specific brand. They are designed as compatible and affordable replacements.
2. What is the difference between 0.6mm and 0.7/0.8/0.9mm thickness?
The 0.6mm thickness is designed for case backs with narrower gasket grooves, typically found in smaller or dress watches. Use 0.7-0.9mm for wider grooves. Always check your watch’s original gasket thickness.
3. Which size should I choose for my watch?
Measure the inner diameter of your watch case back or the old gasket diameter, then select the corresponding size from the 12-30mm range. This set is ideal for small to medium watches and ladies’ models.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
