Watch is 40mm and inside of back cover is 35mm will the 30mm work or will it break if I try to stretch it? Thanks in advance

I wouldn't bother. These are not really made for watches and I was unable to get them to work on any of my watches. They are too thin, in my opinion.

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VAPKER 950 Pcs O Ring 0.5mm Watch Back Rubber Gasket set O-Ring Gasket Seal Replacement O-rings for Watch Backs 19 Different Sizes 12-30mm

VAPKER 950 Pcs O Ring 0.5mm Watch Back Rubber Gasket set O-Ring Gasket Seal Replacement O-rings for Watch Backs 19 Different Sizes 12-30mm

Product ID: 30066355

Details

Brand
VAPKER
Color
black
Item Diameter
30 millimeters
Material
Rubber
Nominal Inside Diameter
12 millimeters

💧0.5mm thickness ensures waterproof seal

📏19 sizes from 12-30mm for perfect fit

🛠️950 pcs total for endless repairs

EC$60

Duties & taxes included

In stock

Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal your style with precision and never miss a beat!

WATERPROOF CONFIDENCE - 0.5mm thick rubber gaskets that lock out moisture
ORGANIZED ACCESSIBLE - Each size packed with 50 pieces in a neat poly bag for quick access
ULTIMATE WATCH REPAIR ARSENAL - 950 precision O-rings to cover every size need
DIY READY PROFESSIONAL GRADE - Ideal for watchmakers and enthusiasts aiming for flawless repairs
TAILORED FIT FOR EVERY TIMEPIECE - 19 distinct diameters from 12mm to 30mm for flawless sealing

The VAPKER 950 Pcs O Ring Set offers a comprehensive collection of 0.5mm thick rubber gaskets in 19 sizes ranging from 12mm to 30mm, totaling 950 pieces. Designed for watch back sealing, these O-rings provide reliable waterproof protection and are perfect for both professional watchmakers and DIY enthusiasts seeking precise, durable replacements.

Specifications

ASIN	B01GLDQQNE
Best Sellers Rank	#3,941,687 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #5,351 in Watch Repair Tools & Kits
Brand Name	VAPKER
Color	black
Customer Reviews	4.4 4.4 out of 5 stars (356)
Item Diameter	30 millimeters
Item Weight	22.68 g
Manufacturer	VAPKER
Material Type	Rubber
Model	RJU016A00138
Nominal Inside Diameter	12 millimeters
Nominal Outside Diameter	0.5 millimeters
Number of Items	950
Number of Packs	1
Number of Pieces	950
Part Number	RJU016A00138
Set Name	VAPKER 950 Pcs O Ring Set
UPC	190497361354

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