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Amazon.com: Semdu 2pcs 20mm Fat Thick Spring Bar Fit for Seiko Dive Watch,Stainless Steel 20mm 2.5mm Fat Spring Bar,Hand-Made 20mm 2.5mm Diameter Replacement Fat Spring bar : Clothing, Shoes & Jewelry
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20mm For SEIKO Watch Steel Pins Spring Bars Strap Band Buckle Clasp Remover Tool | eBay
How to resize a Seiko “collar and pin” watch band | Just another small blog
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