Watch Gaskets Waterproof O-Ring Master Assortment 510 Pieces

This o-ring watch case back seal assortment is the most complete gasket kit available. It is just the assortment that every watchmaker needs because these many gaskets will fit many watches from small ladies watches to large gents and divers watches. These round gaskets are made of solid tube rubber to create an airtight seal and are flexible enough to fit not only round watch case backs but, square, rectangle and other fancy shaped case backs. The thicknesses range from .30 mm to 1.00 mm and the inside diameters range from 12.50 mm to 35.30 mm.

• Kit contains 170 different o-ring sizes in 10 different thicknesses
• **Note** Diameter measured is the interior diameter of the gasket
• In .30 mm thickness there are 8 different sizes ranging from 15.0 mm thru 26.0 mm
• In .40 mm thickness there are 19 different sizes ranging from 11.0 mm thru 30.0 mm
• In .50 mm thickness there are 23 different sizes ranging from 15.0 mm thru 34.00 mm
• In .60 mm thickness there are 28 different sizes ranging from 10.0 mm thru 34.0 mm
• In .70 mm thickness there are 30 different sizes ranging from 16.5 mm thru 35.0 mm
• In .75 mm thickness there are 4 different sizes ranging from 21.6 mm thru 33.0 mm
• In .80 mm thickness there are 21 different sizes ranging from 18.7 mm thru 39.0 mm
• In .90 mm thickness there are 18 different sizes ranging from 19.0 mm thru 39.0 mm
• In 1.00 mm thickness there are 19 different sizes ranging from 19.0 mm thru 38.0 mm
• Contains 3 of each size
• Can easily be reordered by size in the following format: thickness-mm diameter (30-2000)
• Refills are available in packages of 3
• Kit has a total of 510 gaskets
• O-rings fit a variety of watch case backs from round to square
• Maintain airtight seal
• Made of rubber
• Sizes may vary due to availability