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Posted

Hi, Just wondered if someone had one of these and could measure the cross section so I could possibly find an alternative. I'm pretty sure I can work out the outer diameter myself. It's for a Seiko 7006-8002. Thanks in advance.

 

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Posted

Can you get vernier calipers? Very cheap and and absolute necessity for watch repair and much more. Anyway, flat gaskets like the one on your Seiko 5 are normally 0.50mm high.

Posted
Can you get vernier calipers? Very cheap and and absolute necessity for watch repair and much more. Anyway, flat gaskets like the one on your Seiko 5 are normally 0.50mm high.
Hi, I have calipers but I don't have the original gasket. I found that part number by searching on Jules Borel website. I currently have an o ring gasket fitted as a stop gap but it sometimes slips out and stops the movement of the winding weight.

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Posted (edited)
16 minutes ago, aac58 said:

FH2920B03 is a square shaped, 0.5 mm width, 29.2 mm ID, black, round gasket.

I believe it's flat with a width of 0.80mm. Below the Seiko document from where such information was gathered.

1762833866_seikogaskets.thumb.jpg.effd4a7d7687fc73da7dfd1d15677610.jpg

Edited by jdm
Posted
I believe it's flat with a width of 0.80mm. Below the Seiko document from where such information was gathered.
1762833866_seikogaskets.thumb.jpg.effd4a7d7687fc73da7dfd1d15677610.jpg
Thanks guys, that document is great. So I think it should be 0.6 high X 0.8 wide? Steve.

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Posted
1 hour ago, steve1811uk said:

So I think it should be 0.6 high X 0.8 wide? 

0.5 or 0.6 won't make a difference. Width is a little less than the lip on caseback. 

Posted
7 hours ago, jdm said:

I believe it's flat with a width of 0.80mm. Below the Seiko document from where such information was gathered.

1762833866_seikogaskets.thumb.jpg.effd4a7d7687fc73da7dfd1d15677610.jpg

I think it has the old code system, with 4 digits for the size.

Posted
8 hours ago, steve1811uk said:

Thanks guys, that document is great. So I think it should be 0.6 high X 0.8 wide? Steve.

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I beleive it's a squared 0,5 mm cross section and 29,2 mm internal diameter. It your code were the new style, the shape of the gasket (7th digit, which is B in your case) would be square.

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