300pcs Mini O-Ring Watch Crown Waterproof Watch Repair Tools

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Description :

12 kinds of size Watch Back Gasket Rubber Seal Washers Set .
Multi size rubber seal washers , meet your needs .
Rubber gasket set that is installed on the watch back case , can cover the gap between the watch band and movement .
Play role in watch waterproof , suitable for watch repair and DIY watchmaker .
Comes with a plastic rectangle box , easy to arrange the storage by categories and convenient to apply .

Specification :

Material : Rubber
Contains 12 Popular Sizes :
3 . 2 x 1 . 8 x 0 . 7mm
3 . 25x1 . 75 x0 . 75mm
3 . 4 × 1 . 8 × 0 . 8mm
3 . 6x1 . 7x0 . 8 mm
3 . 8x2 . 2x0 . 8 mm
4 . 0x2 . 4x0 . 8 mm
3 . 1 × 1 . 6 × 0 . 5mm
3 . 4x2 . 0x0 . 4 mm
3 . 65x1 . 7x0 . 5mm
3 . 8x2 . 5x0 . 4mm
4 . 0x1 . 8x0 . 5 mm
4 . 2x2 . 0 x0 . 4mm

Package Includes :

300pcs / box O Ring Watch Back Gasket

Note :

Color might be slightly different due to the color calibration of each individual monitor .
Please allow slightly measuring deviation due to manual measurement .

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