Vintage Seiko Sports Diver Gasket Pack - 7123 Sports 100

Regular price £12.99 Sale

New replacement set of quality aftermarket Nitrile (NBR) rubber gaskets for the following models:

  • Seiko 7123-8230
  • Seiko 7123-823A
  • Seiko 7123-823B 
  • Seiko 7123-823F
  • Seiko 7123-823H


  • 1 x Case back gasket (FH3030B substitute)
  • 1 x Rotating bezel gasket (OB3365B substitute)
  • 2 x Crown gasket (EZ0140B substitute) replacement uses 2 crown gaskets instead of 1.

You will also require silicon grease to lubricate the gaskets prior to fitting to ensure that the gaskets seal properly (not included). We recommend a silicon grease applicator (the sponge type).

These gaskets are an exact fit and should provide a water resistant seal to your Seiko diver providing that the case and crown are clean and in good condition with no rust/corrosion or wear.

Crystal gasket and plastic crown gasket holding ring are not included. 

Due to the vintage nature of the watches these gaskets are for we do not accept responsibility for any water ingress that may occur when these have been fitted.