SWISS made Assortment O ring case back gaskets . High Quality. LT1730/B2 | eBay
ISO-K Seal Replacement (O-ring) – UHV Store of Switzerland
53102021 - Lapp Kabel - O-RING, M20, 1.5MM
'O' Ring Gaskets Assorted For Waterproof Watch Case Backs Iso Swiss (120) -MY110 | eBay
90/225 Stück Gummi-O-Ring-Dichtungen, Ölbeständige O-Ring-Unterlegscheiben- Dichtungen, Wasserdichtheits-Sortiment, Kit-Set In Verschiedenen Größen - Temu Switzerland