Here we have a NEW VTA EPDM seal to replace SEIKO Part No. FH3180B0A FH3180B01

It is the correct flat style shape to replace this seal.

The seals are made from high quality EPDM synthetic elastomer. EPDM will vastly outlast the original black nitrile seals for this model and should last the life of the watch assuming they aren't damaged or worn by dirt or contamination. In addition to this, it performs better in sub zero and tropical conditions.

The seals will pass a pressure test to the indicated water resistance for this model, assuming the seals are fitted correctly, the correct crown and pushers are fitted, the correct crystal is fitted and there is no corrosion in the case. I test on a Witschi ALC-2000 dry pressure tester.

For more SEIKO related information and help try the WristSushi Forum -

http://www.wristsushi.com

My website and blog is here -

http://www.vintagetimeaustralia.com