hi can anybody help me I am looking for a case back gasket for a seamaster 200m 3961062

 

Here is a pic of the watch

 

This should work....

http://www.ebay.com/itm/38164153601...49&var=650723433509&ssPageName=STRK:MEBIDX:ITPurchases made through these links may earn this site a commission from the eBay Partner Network

 

Thank you wouldn't know the size I need would you? Can't seem to find a reference anywhere

 

088NS5129 | SEAL O-RING d29 D31 ø1

 

Thank you for the help