New Seiko 4006 Case Spring Movement Ring Spacer 6138-0040 6138-0030 6138-0011
New Spring for Movement Ring for Seiko 4006 Cases ( if you want perfect fit for 4006 here is the link https://www.ebay.com/itm/324390614963 or search by eBay item number : 324390614963 )
This one will fit on most of 6138-0040 6138-0049 6138-0030 6138-0010 6138-0011 and more cases ( not for panda ).
Please feel free to ask if you want to know it will fit on you case or not before purchasing.
It does not have a notch.
Please do not hesitate to contact us if you have any further question.
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We stand by our products 100% and if by any chance you are not satisfied with your purchase,
We will gladly accept returns with no questions asked.